@incollection{Oertel1997, author = {Oertel, Christian}, title = {Produktentwicklungsmethodik und Innovation}, series = {In: Innovation mit System : Erneuerungsstrategien f{\"u}r mittelst{\"a}ndische Unternehmen / T. Biermann, G. Dehr [(Hrsg.). - Berlin [u.a] : Springer, 1997. - ISBN 3-540-62012-5}, booktitle = {In: Innovation mit System : Erneuerungsstrategien f{\"u}r mittelst{\"a}ndische Unternehmen / T. Biermann, G. Dehr [(Hrsg.). - Berlin [u.a] : Springer, 1997. - ISBN 3-540-62012-5}, pages = {105 -- 122}, year = {1997}, language = {de} } @techreport{Oertel1998, author = {Oertel, Christian}, title = {Rubber Bushing MBS Model}, year = {1998}, language = {en} } @techreport{OertelFandre1999, author = {Oertel, Christian and Fandre, Andreas}, title = {Ride comfort simulations and steps towards life time calculations: RMOD-K tyre model and ADAMS}, year = {1999}, language = {en} } @techreport{Oertel1999, author = {Oertel, Christian}, title = {Ber{\"u}cksichtigung der ABS-Eigenschaften in der Fahrzeugdynamik}, year = {1999}, language = {de} } @article{OertelFandre2001, author = {Oertel, Christian and Fandre, Andreas}, title = {Reifenmodellsystem RMOD-K: Ein Beitrag zum virtuellen Fahrzeug}, series = {In: ATZ - Automobiltechnische Zeitschrift 103 (2001) 11, pp 1074-1079}, journal = {In: ATZ - Automobiltechnische Zeitschrift 103 (2001) 11, pp 1074-1079}, doi = {10.1007/BF03223462}, pages = {1074 -- 1079}, year = {2001}, abstract = {Dieser Beitrag der Hochschule Anhalt (FH) und der gedas beschreibt ein Modellsystem mit dem Ziel, das Verhalten von Reifen auf unterschiedlichen Straßenbel{\"a}gen zu berechnen. Neben der Modellierung des Reifens selbst liegt ein weiterer Schwerpunkt auf der Darstellung realer Straßenverh{\"a}ltnisse basierend auf Messungen unter Verwendung eines Millimetergitters. Simulationen im Bereich der Fahrdynamik, des Fahrkomforts bis hin zu Lebensdauertests mit virtuellen Fahrzeugmodellen k{\"o}nnen mit dem Modellsystem RMOD-K bereits in einem fr{\"u}hen Stadium der Fahrzeugentwicklung durchgef{\"u}hrt werden.}, language = {de} } @techreport{Oertel2002, author = {Oertel, Christian}, title = {Kontakt- und Strukturmechanik in Reifenmodellen f{\"u}r die Mehrk{\"o}rperdynamik}, year = {2002}, language = {de} } @article{Oertel2002, author = {Oertel, Christian}, title = {Eigensystem of tangential contact in tyre models}, series = {In : Vehicle System Dynamics 38 (2002) 4, 245-260}, journal = {In : Vehicle System Dynamics 38 (2002) 4, 245-260}, doi = {10.1076/vesd.38.4.245.8284}, pages = {245 -- 260}, year = {2002}, abstract = {Summary In this paper, a simplified model of tangential contact between tyre and rigid surface is investigated. By linearization the eigensystem of the contact equations is obtained and parameter variations are carried out. It is shown, that some vehicle model parameters have great influence on the eigensystem of tangential contact and can determine the highest eigenfrequency of the system vehicle and tyre. Root loci are used to investigate the influence of parameters like vehicle velocity and gridwidth of the discretization. Based on the eigensystem, stability areas of numerical methods in solving the partial differential equations of tangential contact are calculated. Numerical solutions using stiff and nonstiff integrators are compared with respect to the stability areas, computational effort and accuracy. The results are discussed with a view to further development.}, language = {en} } @techreport{Oertel2004, author = {Oertel, Christian}, title = {High frequency related tyre modelling}, year = {2004}, language = {de} } @techreport{OertelFriedemannDeteretal.2005, author = {Oertel, Christian and Friedemann, D. and Deter, T. and Quaissa, A.}, title = {Methodenentwicklung Hindernis{\"u}berfahrt}, year = {2005}, language = {de} } @techreport{Oertel2007, author = {Oertel, Christian}, title = {RMOD-K V 7.09}, year = {2007}, language = {de} } @techreport{Oertel2007, author = {Oertel, Christian}, title = {Reifenmodelle als Komponenten in der Gesamtfahrzeugmodellierung}, year = {2007}, language = {de} } @techreport{Oertel2008, author = {Oertel, Christian}, title = {Tyre models in vehicle dynamics: theory and application, part 2: tyre structure dynamics tyre model}, year = {2008}, language = {en} } @techreport{Oertel2008, author = {Oertel, Christian}, title = {Tyre models in vehicle dynamics: theory and application, part 1: vehicle dynamics tyre model}, year = {2008}, language = {en} } @article{WeiOertelShena2012, author = {Wei, Yintao and Oertel, Christian and Shena, Xiaoliang}, title = {Tyre rolling kinematics and prediction of tyre forces and moments: part II - simulation and experiment}, series = {In: Vehicle system dynamics 50 (2012) 11, 1689-1706}, journal = {In: Vehicle system dynamics 50 (2012) 11, 1689-1706}, doi = {10.1080/00423114.2012.694453}, pages = {1689 -- 1706}, year = {2012}, abstract = {There are two aims for the second part of this paper: verifying the theory presented in the first part through parameter variation and comparison between simulation and experiment, and to study the effect of the belt structure on the cornering properties of radial tyres. Research has been carried out with a passenger car radial tyre and two different kinds of truck or bus radial tyres using both simulation and experiment. This second part of the paper shows that belt structure plays an important role in the generation of tyre forces and moments in addition to the effects of the tread stiffness and friction coefficients. The theory and method presented in this paper opens a new robust way to predict the tyre forces and moments from the tyre design and provides a reliable model for a generation mechanism.}, language = {en} } @article{OertelWei2012, author = {Oertel, Christian and Wei, Yintao}, title = {Tyre rolling kinematics and prediction of tyre forces and moments: part I - theory and method}, series = {In: Vehicle system dynamics 50 (2012) 11, 1673-1687}, journal = {In: Vehicle system dynamics 50 (2012) 11, 1673-1687}, doi = {10.1080/00423114.2012.694452}, pages = {1673 -- 1687}, year = {2012}, abstract = {A new method to describe tyre rolling kinematics and how to calculate tyre forces and moments is presented. The Lagrange-Euler method is used to calculate the velocity and contact deformation of a tyre structure under large deformation. The calculation of structure deformation is based on the Lagrange method, while the Euler method is used to analyse the deformation and forces in the contact area. The method to predict tyre forces and moments is built using kinematic theory and nonlinear finite element analysis. A detailed analysis of the tyre tangential contact velocity and the relationships between contact forces, contact areas, lateral forces, and yaw and camber angles has been performed for specific tyres. Research on the parametric sensitivity of tyre lateral forces and self-aligning torque on tread stiffness and friction coefficients is carried out in the second part of this paper.}, language = {en} } @article{OertelFandre2009, author = {Oertel, Christian and Fandre, A.}, title = {Tire Model RMOD-K 7 and Misuse Load Cases}, series = {In: SAE technical papers 2009-01-0582}, journal = {In: SAE technical papers 2009-01-0582}, year = {2009}, abstract = {Among load cases concerning vehicle suspension strength and durability, the misuse case is very special because of large obstacles. In this paper, an extension of the flexible belt model RMOD-K 7 concerning misuse situations is discussed. In normal rolling conditions, contact occurs between tire and road surface. To handle misuse deformations, the contact between the inner surface of the tire and the rim has to be dealt with. Results of the validation process are shown, leading to normal forces up to 70 [kN]. The model can be used together with mbs full vehicle models. One example is the determination of the critical test velocity, which generates the maximum of suspension stresses and can be found using RMOD-K 7.}, language = {en} } @article{Oertel2009, author = {Oertel, Christian}, title = {Misuse load cases and MBS simulation}, series = {In: Tire technology international 2009, 62-64}, journal = {In: Tire technology international 2009, 62-64}, pages = {62 -- 64}, year = {2009}, language = {en} } @techreport{OertelHempel2010, author = {Oertel, Christian and Hempel, J.}, title = {Finite Elemente f{\"u}r die Reifenmodellierung}, year = {2010}, language = {de} } @inproceedings{VollmerMoellmann2009, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Perspectives of IR imaging for industrial detection and monitoring of CO2}, series = {In: Temperatur 2009 : Fachtagung PTB Institut Berlin, 24./25. Juni 2009 ; [Verfahren und Ger{\"a}te in der Temperatur- und Feuchtemesstechnik ; Tagungsband] / [Hrsg.: Physikalisch-Technische Bundesanstalt, Braunschweig und Berlin]. Fachl. Mittr{\"a}ger: VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik (GMA), Fachgebiet 2.50: Temperatur und Feuchte. - Braunschweig [u.a.] : Physikalisch-Techn. Bundesanst., 2009. - ISBN 3-9810021-9-9}, booktitle = {In: Temperatur 2009 : Fachtagung PTB Institut Berlin, 24./25. Juni 2009 ; [Verfahren und Ger{\"a}te in der Temperatur- und Feuchtemesstechnik ; Tagungsband] / [Hrsg.: Physikalisch-Technische Bundesanstalt, Braunschweig und Berlin]. Fachl. Mittr{\"a}ger: VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik (GMA), Fachgebiet 2.50: Temperatur und Feuchte. - Braunschweig [u.a.] : Physikalisch-Techn. Bundesanst., 2009. - ISBN 3-9810021-9-9}, pages = {27 -- 36}, year = {2009}, language = {de} } @inproceedings{MoellmannVollmer2013, author = {M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {Einfache Charakterisierung der zeitlichen und r{\"a}umlichen Aufl{\"o}sung von W{\"a}rmebildkameras}, series = {In: Temperatur 2013 : Fachtagung ; PTB Institut Berlin, 5./6. Juni 2013 ; [Verfahren und Ger{\"a}te in der Temperatur- und Feuchtemesstechnik ; Tagungsband] / [Hrsg.: Physikalisch-Technische Bundesanstalt, Braunschweig und Berlin]. Fachl. Mittr{\"a}ger: VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik (GMA), Fachgebiet 2.50: Temperatur und Feuchte. - Braunschweig [u.a.] : Physikalisch-Techn. Bundesanst., 2013. - ISBN 3-9810021-8-0}, booktitle = {In: Temperatur 2013 : Fachtagung ; PTB Institut Berlin, 5./6. Juni 2013 ; [Verfahren und Ger{\"a}te in der Temperatur- und Feuchtemesstechnik ; Tagungsband] / [Hrsg.: Physikalisch-Technische Bundesanstalt, Braunschweig und Berlin]. Fachl. Mittr{\"a}ger: VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik (GMA), Fachgebiet 2.50: Temperatur und Feuchte. - Braunschweig [u.a.] : Physikalisch-Techn. Bundesanst., 2013. - ISBN 3-9810021-8-0}, pages = {137 -- 142}, year = {2013}, language = {de} } @inproceedings{VollmerMoellmannShawetal.2013, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter and Shaw, J. A. and Nugent, P. W.}, title = {Measurements of the surface temperature of the moon from earth with IR cameras}, series = {In: Temperatur 2013 : Fachtagung ; PTB Institut Berlin, 5./6. Juni 2013 ; [Verfahren und Ger{\"a}te in der Temperatur- und Feuchtemesstechnik ; Tagungsband] / [Hrsg.: Physikalisch-Technische Bundesanstalt, Braunschweig und Berlin]. Fachl. Mittr{\"a}ger: VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik (GMA), Fachgebiet 2.50: Temperatur und Feuchte. - Braunschweig [u.a.] : Physikalisch-Techn. Bundesanst., 2013. - ISBN 3-9810021-8-0}, booktitle = {In: Temperatur 2013 : Fachtagung ; PTB Institut Berlin, 5./6. Juni 2013 ; [Verfahren und Ger{\"a}te in der Temperatur- und Feuchtemesstechnik ; Tagungsband] / [Hrsg.: Physikalisch-Technische Bundesanstalt, Braunschweig und Berlin]. Fachl. Mittr{\"a}ger: VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik (GMA), Fachgebiet 2.50: Temperatur und Feuchte. - Braunschweig [u.a.] : Physikalisch-Techn. Bundesanst., 2013. - ISBN 3-9810021-8-0}, pages = {149 -- 154}, year = {2013}, language = {en} } @inproceedings{MoellmannVollmerKarstaedt1999, author = {M{\"o}llmann, Klaus-Peter and Vollmer, Michael and Karst{\"a}dt, Detlef}, title = {Tieftemperaturexperimente in der Experimentalphysikausbildung an Hochschulen: Experimente mit fl{\"u}ssigem Stickstoff in der Hochschullehre}, series = {In: Fr{\"u}hjahrstagung des Fachverbands Didaktik der Physik in der Deutschen Physikalischen Gesellschaft, Ludwigsburg 1999 ; zus{\"a}tzlich mit den Beitr{\"a}gen des Lehrertages und der Kunstausstellung bei der Fr{\"u}hjahrstagung 1999 des Arbeitskreises Festk{\"o}rperphysik in M{\"u}nster. - Berlin : Lehmann, 1999. - 1 CD-ROM. - ISBN 3-931253-41-4}, booktitle = {In: Fr{\"u}hjahrstagung des Fachverbands Didaktik der Physik in der Deutschen Physikalischen Gesellschaft, Ludwigsburg 1999 ; zus{\"a}tzlich mit den Beitr{\"a}gen des Lehrertages und der Kunstausstellung bei der Fr{\"u}hjahrstagung 1999 des Arbeitskreises Festk{\"o}rperphysik in M{\"u}nster. - Berlin : Lehmann, 1999. - 1 CD-ROM. - ISBN 3-931253-41-4}, year = {1999}, language = {de} } @article{Vollmer2000, author = {Vollmer, Michael}, title = {Finsternisse, Transits, Kometen und Meteore: ein Blick in die Zukunft}, series = {In: CD zur Fr{\"u}hjahrstagung des Fachverbandes Didaktik der Physik in der Deutschen Physikalischen Gesellschaft, Dresden 2000 ; weiterhin enthalten: Beitr{\"a}ge zu den Lehrertagen und Exponate der Kunstausstellung Grenzfl{\"a}chen bei der Fr{\"u}hjahrstagung Regensburg 2000 / Red.: V. Nordmeier . - Berlin : Lehmann, 2000. - 1 CD-ROM. - ISBN 3-931253-71-6}, journal = {In: CD zur Fr{\"u}hjahrstagung des Fachverbandes Didaktik der Physik in der Deutschen Physikalischen Gesellschaft, Dresden 2000 ; weiterhin enthalten: Beitr{\"a}ge zu den Lehrertagen und Exponate der Kunstausstellung Grenzfl{\"a}chen bei der Fr{\"u}hjahrstagung Regensburg 2000 / Red.: V. Nordmeier . - Berlin : Lehmann, 2000. - 1 CD-ROM. - ISBN 3-931253-71-6}, year = {2000}, language = {de} } @inproceedings{Vollmer2002, author = {Vollmer, Michael}, title = {Freihandspektroskopieexperimente im Unterricht und als Hausaufgabe}, series = {In: CD zur Fr{\"u}hjahrstagung des Fachverbandes Didaktik der Physik in der Deutschen Physikalischen Gesellschaft : Leipzig, 2002 / Red.: V. Nordmeier. - Berlin : Lehmann, [2002]. - 1 CD-ROM. - ISBN 3-936427-11-9}, booktitle = {In: CD zur Fr{\"u}hjahrstagung des Fachverbandes Didaktik der Physik in der Deutschen Physikalischen Gesellschaft : Leipzig, 2002 / Red.: V. Nordmeier. - Berlin : Lehmann, [2002]. - 1 CD-ROM. - ISBN 3-936427-11-9}, year = {2002}, language = {de} } @inproceedings{Vollmer2002, author = {Vollmer, Michael}, title = {{\"U}ber die Farben der Sonne und des Himmels: Rayleigh- und Miestreuung in Demonstrationsexperimenten}, series = {In: CD zur Fr{\"u}hjahrstagung des Fachverbandes Didaktik der Physik in der Deutschen Physikalischen Gesellschaft : Leipzig, 2002 / Red.: V. Nordmeier. - Berlin : Lehmann, [2002]. - 1 CD-ROM. - ISBN 3-936427-11-9}, booktitle = {In: CD zur Fr{\"u}hjahrstagung des Fachverbandes Didaktik der Physik in der Deutschen Physikalischen Gesellschaft : Leipzig, 2002 / Red.: V. Nordmeier. - Berlin : Lehmann, [2002]. - 1 CD-ROM. - ISBN 3-936427-11-9}, year = {2002}, language = {de} } @inproceedings{ChristmannVollmer2004, author = {Christmann, S. and Vollmer, Michael}, title = {Jahrgangs{\"u}bergreifendes Projekt zum Wetter f{\"u}r die Grundschule}, series = {In: Didaktik der Physik : Beitr{\"a}ge zur Fr{\"u}hjahrstagung D{\"u}sseldorf 2004 ; CD zur Fr{\"u}hjahrstagung des Fachverbandes Didaktik der Physik in der Deutschen Physikalischen Gesellschaft / V. Nordmeier ... (Hrsg.). - Berlin : Lehmanns Media, 2004. - 1 CD-ROM. - ISBN 3-86541-066-9}, booktitle = {In: Didaktik der Physik : Beitr{\"a}ge zur Fr{\"u}hjahrstagung D{\"u}sseldorf 2004 ; CD zur Fr{\"u}hjahrstagung des Fachverbandes Didaktik der Physik in der Deutschen Physikalischen Gesellschaft / V. Nordmeier ... (Hrsg.). - Berlin : Lehmanns Media, 2004. - 1 CD-ROM. - ISBN 3-86541-066-9}, year = {2004}, language = {de} } @incollection{VollmerKreibig1992, author = {Vollmer, Michael and Kreibig, U.}, title = {Collective excitations of large metal clusters}, series = {In: Nuclear physics concepts in the study of atomic cluster physics : proceedings of the 88th W.-E.-Heraeus-Seminar, held at Bad Honnef, FRG, 26 - 29 November 1991 / R. Schmidt ... (ed.). - Berlin [u.a.] : Springer, 1992. - (Lecture notes in physics ; Vol. 404). - ISBN 3-540-55625-7 ; 0-387-55625-7. - S. 266-276}, booktitle = {In: Nuclear physics concepts in the study of atomic cluster physics : proceedings of the 88th W.-E.-Heraeus-Seminar, held at Bad Honnef, FRG, 26 - 29 November 1991 / R. Schmidt ... (ed.). - Berlin [u.a.] : Springer, 1992. - (Lecture notes in physics ; Vol. 404). - ISBN 3-540-55625-7 ; 0-387-55625-7. - S. 266-276}, doi = {10.1007/3-540-55625-7_30}, pages = {266 -- 276}, year = {1992}, abstract = {Studies of the evolution of the optical properties of metal clusters as a function of size have gained considerable attention in the last few years. One theoretical approach starts from large metal clusters, which can be described by classical electrodynamics, provided the dielectric functions of the clusters are known. the resulting resonant features in the absorption spectra are commonly called surface plasmons and are collective excitations of the electron system.The present paper discusses the electrodynamic (Mie) theory for large clusters of different metals, also considering the range of validity of this approach towards smaller cluster sizes. More details can be found in an extended review on this topic which is to be published soon [1].}, language = {en} } @article{GoetzHoheiselTraegeretal.1993, author = {G{\"o}tz, T. and Hoheisel, W. and Tr{\"a}ger, F. and Vollmer, Michael}, title = {Interplay between collective and single electron excitations in large metal clusters}, series = {In: Zeitschrift f{\"u}r Physik / D 26 (1993), 267-269}, journal = {In: Zeitschrift f{\"u}r Physik / D 26 (1993), 267-269}, year = {1993}, language = {en} } @article{HoheiselVollmerTraeger1993, author = {Hoheisel, W. and Vollmer, Michael and Tr{\"a}ger, F.}, title = {Desorption of metal atoms with laser light: Mechanistic studies}, series = {In: Physical Review / B 48 1993) 23, 17463-17476}, journal = {In: Physical Review / B 48 1993) 23, 17463-17476}, doi = {10.1103/PhysRevB.48.17463}, year = {1993}, abstract = {Results on laser-induced desorption of metal atoms from small metal particles are presented. Experiments have been performed on sodium, potassium, and silver particles supported on a LiF(100) single-crystal surface under ultrahigh vacuum conditions. Measurements include the determination of the desorption rate as a function of laser wavelength, laser intensity, average particle size, and substrate temperature, the determination of the kinetic energy of the desorbed atoms, the investigation of the optical spectra of the supported metal particles, and the study of the influence of adsorbate molecules on the desorption rate. Furthermore, theoretical extinction and absorption spectra of the metal particles have been calculated with the classical electrodynamical Mie theory as a function of average particle size and excitation wavelength. Also, the radial electric field at the particle surface was computed. The results of the experiments and theoretical calculations are combined to give a consistent picture of the mechanism of metal-atom desorption by electronic excitation with laser light. A realistic surface potential from which the atoms escape and nonlocal optical effects are taken into account. The latter introduce additional absorption channels by the formation of electron-hole pairs in the surface layer of the particle which relax into antibonding states before desorption occurs. Finally, the mechanism is discussed in the light of similar phenomena observed for thin metal films. Possibilities for future work are outlined. © 1993 The American Physical Society}, language = {en} } @article{GoetzTraegerVollmer1993, author = {G{\"o}tz, T. and Tr{\"a}ger, F. and Vollmer, Michael}, title = {Desorption of metal atoms with laser light of different polarization}, series = {In: Applied physics / A 57 (1993) 1, pp 101-104}, journal = {In: Applied physics / A 57 (1993) 1, pp 101-104}, doi = {10.1007/BF00331225}, pages = {101 -- 104}, year = {1993}, abstract = {Laser-induced desorption of metal atoms from the surface of small metal particles has been investigated as a function of the shape of the particles and the polarization of the incident laser light. The particles were supported on LiF, quartz or sapphire substrates. In a first set of experiments, the shape of the particles was determined by recording optical transmission spectra with s- and p-polarized light incident under an angle of typically 40° with respect to the surface normal. The metal particles turn out to be oblate, the ratio of the axes perpendicular and parallel to the substrate surface being on the order of 0.5. This ratio decreases with increasing particle size. Also, the particles change shape if the temperature is raised. In further experiments, s- and p-polarized light has been used to stimulate desorption of atoms via surface plasmon excitation. It is found that the desorption rate markedly depends on the polarization of the light. This is explained by excitation of the collective electron oscillation along different axes of the non-spherical particles.}, language = {en} } @article{HoevelFritzHilgeretal.1993, author = {H{\"o}vel, H. and Fritz, S. and Hilger, A. and Kreibig, U. and Vollmer, Michael}, title = {Width of cluster plasmon resonances: Bulk dielectric functions and chemical interface damping}, series = {In: Phys. Rev. B 48 (1993) 24, 18178-18188}, journal = {In: Phys. Rev. B 48 (1993) 24, 18178-18188}, doi = {10.1103/PhysRevB.48.18178}, year = {1993}, abstract = {The damping of collective electron resonances in clusters which develop into plasmon polaritons at larger sizes is investigated for free, supported, and embedded neutral metal clusters. Embedding of free 2 nm Ag clusters of 2-nm diameter into a SiO2 matrix leads to an increase of the width of the resonances by more than a factor of 3. The optical spectra are compared with the Mie theory using size-effect-modified dielectric functions of the solid state. The results corroborate the assumption that the widths of the resonances strongly depend on chemical interface effects. The results are briefly discussed with regard to limited-mean-free-path and quantum-size-effect theories and a recent approach by Persson. It is demonstrated that the widths of the spectra of supported and embedded clusters have to be interpreted with care since true intrinsic size effects of the clusters appear to be less effective than previously believed and can be obscured by the chemical interface damping. © 1993 The American Physical Society}, language = {en} } @inproceedings{Vollmer1994, author = {Vollmer, Michael}, title = {Ablation of Metal Particles with Laser Light: Shape and Polarization Effects}, series = {In: Laser ablation: mechanisms and applications - II : second international conference, Knoxville, TN April 1993 / eds.: John C. Miller ...- New York : American Inst. of Physics, 1994. - (AIP conference proceedings / American Institute of Physics. - Melville, NY, 1970- ; 288) (Laser ablation: mechanisms and applications. - New York : American Institute of Physics ; 2). - S. 32 ff}, booktitle = {In: Laser ablation: mechanisms and applications - II : second international conference, Knoxville, TN April 1993 / eds.: John C. Miller ...- New York : American Inst. of Physics, 1994. - (AIP conference proceedings / American Institute of Physics. - Melville, NY, 1970- ; 288) (Laser ablation: mechanisms and applications. - New York : American Institute of Physics ; 2). - S. 32 ff}, pages = {32 -- 37}, year = {1994}, language = {en} } @article{GoetzHoheiselTraegeretal.1995, author = {G{\"o}tz, T. and Hoheisel, W. and Tr{\"a}ger, F. and Vollmer, Michael}, title = {Characterization of Large Supported Metal Clusters by Optical Spectroscopy}, series = {In: Zeitschrift f{\"u}r Physik / D Vol. 33 (1995) 2, pp 133-141}, journal = {In: Zeitschrift f{\"u}r Physik / D Vol. 33 (1995) 2, pp 133-141}, doi = {10.1007/BF01437432}, year = {1995}, abstract = {Small sodium and silver particles were generated on dielectric substrates like LiF, quartz and sapphire under ultrahigh vacuum conditions. The optical transmission spectra of the clusters were measured as a function of cluster size and shape, for low and high substrate temperatures as well as for s- and p- polarization of the incident light. Excitation of dipolar surface plasmon oscillations in the directions normal and parallel to the substrate surface could be identified. Furthermore, optical spectra for Na and Ag clusters were calculated with the classical Mie theory. The measured spectra vary strongly if the experimental conditions are changed and can be exploited, for example, to characterize the particles with regard to their size and shape. In particular, the axial ratio of the spheroidal clusters could be determined. Its value is considerably different for the two investigated metals and depends on the substrate material. Furthermore, the temperature of the substrate has a pronounced influence on the shape of the particles. At low temperature of T=100 K two-dimensional island growth is predominant. The particles extend only little in the direction perpendicular to the surface and coalesce readily at small coverage of metal atoms. In contrast, the clusters are truly three-dimensional at T=300 K. At this stage, sodium particles still exhibit a rather small axial ratio whereas silver clusters appear almost spherical. Thus, measurements of the optical spectra permit direct in situ monitoring of cluster growth during the nucleation of adsorbed atoms and of temperature induced shape variations. In addition to investigations of the shape of the particles, the quadrupolar surface plasmon mode was observed for Ag clusters.}, language = {en} } @article{VollmerTammer1998, author = {Vollmer, Michael and Tammer, Robert}, title = {Laboratory Experiments in Atmospheric Optics}, series = {In: Applied optics 37 (1998) 9, pp. 1557-1568}, journal = {In: Applied optics 37 (1998) 9, pp. 1557-1568}, doi = {10.1364/AO.37.001557}, pages = {1557 -- 1568}, year = {1998}, abstract = {Old and new laboratory experiments on atmospheric optics with a focus on mirages, rainbows, and halos are presented. Some qualitative demonstrations serve primarily didactical purposes, e.g., by proving the existence of curved light rays in media with a gradient of the index of refraction, by directly visualizing the minimum-deviation curve for rainbow paths in water droplets, or by helping to elucidate the ray classes in hexagons that contribute to a specific halo. In addition, quantitative experiments allow a direct comparison of angular positions and intensities with analytical computations or Monte Carlo simulations of light scattering from small water droplets or ice hexagons. In particular, the latter can help us to understand complex halo phenomena. © 1998 Optical Society of America}, language = {en} } @article{VollmerGreenler2003, author = {Vollmer, Michael and Greenler, Robert}, title = {More Halo and Mirage Experiments in Atmospheric Optics}, series = {In: Applied Optics 42 (2003) 3, pp. 394-398}, journal = {In: Applied Optics 42 (2003) 3, pp. 394-398}, doi = {10.1364/AO.42.000394}, year = {2003}, abstract = {Some laboratory demonstrations on atmospheric optics are presented. The focus is on dispersion effects in mirages, lateral mirages, and inferior mirages produced with small hot plates. We also show a demonstration of the upper-tangent-arc halo, produced with a hexagonal prism, rotating about two axes. © 2003 Optical Society of America}, language = {en} } @inproceedings{MoellmannLutzVollmeretal.2004, author = {M{\"o}llmann, Klaus-Peter and Lutz, Norbert and Vollmer, Michael and Wille, Ch.}, title = {Thermography of Microsystems}, series = {In: InfraMation proceedings Vol. 5 (2004), 183-196}, booktitle = {In: InfraMation proceedings Vol. 5 (2004), 183-196}, pages = {183 -- 196}, year = {2004}, language = {en} } @article{SchneiderVollmer2005, author = {Schneider, Werner B. and Vollmer, Michael}, title = {Experimental simulations of pollen coronas}, series = {In: Applied optics 44 (2005) 27, 5746-5753}, journal = {In: Applied optics 44 (2005) 27, 5746-5753}, doi = {10.1364/AO.44.005746}, pages = {5746 -- 5753}, year = {2005}, abstract = {A procedure to experimentally simulate pollen coronas is discussed. Observed coronas are due to pine and birch pollen having different geometries. Using computer simulations, two-dimensional projections of a large number of pollenlike objects with adjustable shapes, with or without preferential orientation and statistical or regular spatial distribution, are generated. The photograph of the printout allows samples with typical sizes between 20 and 200 µm. Their diffraction patterns can closely resemble the ones observed in nature and predicted by theory. © 2005 Optical Society of America}, language = {en} } @article{Vollmer2005, author = {Vollmer, Michael}, title = {Effects of absorbing particles on coronas and glories}, series = {In: Applied optics 44 (2005) 27, 5658-5666}, journal = {In: Applied optics 44 (2005) 27, 5658-5666}, doi = {10.1364/AO.44.005658}, pages = {5658 -- 5666}, year = {2005}, abstract = {Light scattering from small particles changes if the particles are absorbing. Whereas the effect is small for coronas and Bishop's ring, glories show pronounced attenuation with increasing absorption. Results indicate suitable wavelength regions for studies of glory scattering from cloud tops. The behavior of core-shell particles could have applications for studying the atmosphere of Venus; in addition it provides more insight into the simple ray-path model of the glory. © 2005 Optical Society of America}, language = {en} } @article{GedzelmanVollmer2008, author = {Gedzelman, Stanley David and Vollmer, Michael}, title = {Atmospheric Optical Phenomena and Radiative Transfer}, series = {In: Bulletin of the American Meteorological Society. 89 (2008) 4, 471-485}, journal = {In: Bulletin of the American Meteorological Society. 89 (2008) 4, 471-485}, doi = {10.1175/BAMS-89-4-471}, pages = {471 -- 485}, year = {2008}, abstract = {We present simple radiative transfer models for the radiance and color of atmospheric optical phenomena. Skylight, halos, and rainbows are treated as singly scattered sunlight that is depleted by scattering as it passes through a plane-parallel atmosphere and a vertical rain shaft or a geometrically thin cloud layer. Skylight in a molecular atmosphere grades from deep blue at the zenith to pale blue near the horizon whenever the solar zenith angle sun ≤ 80°. Skylight near the horizon is orange resulting from wavelength-dependent scattering by air molecules and aerosol particles through a long oblique path through the atmosphere when the sun is low in the sky (sun ≥ 85°). Halos (and coronas) seen through clouds facing the sun are brightest for cloud optical depth τcld ≈ cos(sun), and fade to obscurity for τcld ≥ 5. Rainbows (and glories), seen by light that is backscattered from clouds, also appear most dramatic when 0.2 ≤ τcld ≤ 1, but remain visible even in the thickest clouds.}, language = {en} } @inproceedings{MoellmannPinnoVollmer2007, author = {M{\"o}llmann, Klaus-Peter and Pinno, Frank and Vollmer, Michael}, title = {Influence of wind effects on thermal imaging results - Is the wind chill effect relevant ?}, series = {In: InfraMation proceedings Vol. 8 (2007), 21-31}, booktitle = {In: InfraMation proceedings Vol. 8 (2007), 21-31}, pages = {21 -- 31}, year = {2007}, language = {en} } @article{HernitschekSchmidtVollmer2008, author = {Hernitschek, Nina and Schmidt, Elmar and Vollmer, Michael}, title = {Lunar eclipse photometry: absolute luminance measurements and modeling}, series = {In: Applied optics 47 (2008) 34, pp. H62-H71}, journal = {In: Applied optics 47 (2008) 34, pp. H62-H71}, doi = {10.1364/AO.47.000H62}, pages = {H62 -- H71}, year = {2008}, abstract = {The Moon's time-dependent luminance was determined during the 9 February 1990 and 3 March 2007 total lunar eclipses by using calibrated, industry standard photometers. After the results were corrected to unit air mass and to standard distances for both Moon and Sun, an absolute calibration was accomplished by using the Sun's known luminance and a pre-eclipse lunar albedo of approximately 13.5\%. The measured minimum level of brightness in the total phase of both eclipses was relatively high, namely -3.32 mvis and -1.7 mvis , which hints at the absence of pronounced stratospheric aerosol. The light curves were modeled in such a way as to let the Moon move through an artificial Earth shadow composed of a multitude of disk and ring zones, containing a relative luminance data set from an atmospheric radiative transfer calculation. © 2008 Optical Society of America}, language = {en} } @article{GedzelmanVollmer2008, author = {Gedzelman, Stanley David and Vollmer, Michael}, title = {Simulating irradiance and color during lunar eclipses using satellite data}, series = {In: Applied Optics 47 (2008) 34, pp. H149-H156}, journal = {In: Applied Optics 47 (2008) 34, pp. H149-H156}, doi = {http://dx.doi.org/10.1364/AO.47.00H149}, pages = {H149 -- H156}, year = {2008}, abstract = {Irradiance and color during the total lunar eclipses of 2007 and 2008 are simulated using a ray tracing model that includes refraction, scattering by molecules, and observed or climatological distributions of aerosols, ozone, clouds, and topography around the terminator. Central portions of the umbra appear deep red for almost all eclipses due to preferential removal of short wavelengths in the spectrum of sunlight by scattering in the lower troposphere. The fringe of the umbra appears turquoise or blue due to selective removal of wavelengths around 600 nm by the Chappuis absorption bands of ozone in the stratosphere. Asymmetric distributions of clouds and aerosols, particularly for the 2008 eclipse, produce minimum calculated irradiance up to 17  arc min from the umbra center, while high ozone content over the arctic makes the northern edge of the umbra deepest blue. © 2008 Optical Society of America}, language = {en} } @article{VollmerGedzelman2008, author = {Vollmer, Michael and Gedzelman, Stanley David}, title = {Simulating irradiance during lunar eclipses: the spherically Symmetric case}, series = {In: Applied Optics 47 (2008) 34, H52-61}, journal = {In: Applied Optics 47 (2008) 34, H52-61}, doi = {http://dx.doi.org/10.1364/AO.47.000H52}, pages = {H52 -- H61}, year = {2008}, abstract = {Irradiance during total lunar eclipses is simulated using a pinhole model. The Moon is illuminated by direct sunlight that is refracted into the Earth's shadow as it passes through the atmosphere at the terminator but is depleted by scattering by molecules, extinction by aerosol particles, absorption by ozone, and obstruction by clouds and elevated land. On a spherical, sea-level Earth, and a cloudless, molecular atmosphere with no ozone, the eclipsed Moon appears red and calculated irradiance at the center of the umbra is reduced by a factor of about 2400 from direct moonlight. Selective absorption mainly of light around 600 nm by stratospheric ozone turns the periphery of the umbra pale blue. Typical distributions of aerosol particles, ozone, mountains, and clouds around the terminator reduce irradiance by an additional factor of the order of 100. © 2008 Optical Society of America}, language = {en} } @inproceedings{PinnoMoellmannVollmer2008, author = {Pinno, Frank and M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {Thermography of window panes - problems, possibilities and troubleshooting}, series = {In: InfraMation proceedings Vol. 9 (2008), 355-362}, booktitle = {In: InfraMation proceedings Vol. 9 (2008), 355-362}, pages = {355 -- 362}, year = {2008}, language = {en} } @inproceedings{MoellmannPinnoVollmer2008, author = {M{\"o}llmann, Klaus-Peter and Pinno, Frank and Vollmer, Michael}, title = {Night sky radiant cooling - influence on outdoor thermal imaging analysis}, series = {In: InfraMation proceedings Vol. 9 (2008), 279-295}, booktitle = {In: InfraMation proceedings Vol. 9 (2008), 279-295}, pages = {279 -- 295}, year = {2008}, language = {en} } @inproceedings{VollmerMoellmannPinno2008, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter and Pinno, Frank}, title = {Cheese cubes, light bulbs, soft drinks: An unusual approach to study convection, radiation and size dependent heating and cooling}, series = {In: InfraMation proceedings Vol. 9 (2008), p. 477-492}, booktitle = {In: InfraMation proceedings Vol. 9 (2008), p. 477-492}, pages = {477 -- 492}, year = {2008}, language = {en} } @inproceedings{MoellmannPinnoVollmer2009, author = {M{\"o}llmann, Klaus-Peter and Pinno, Frank and Vollmer, Michael}, title = {Microscopic and high-speed thermal imaging: a powerful tool in physics R\&D}, series = {In: InfraMation proceedings Vol.10 (2009), 303-317}, booktitle = {In: InfraMation proceedings Vol.10 (2009), 303-317}, pages = {303 -- 317}, year = {2009}, language = {en} } @inproceedings{PinnoMoellmannVollmer2009, author = {Pinno, Frank and M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {Solar load and reflection effects and respective time constants in outdoor building inspections}, series = {In: Inframation proceedings Vol. 10 (2009), 319-330}, booktitle = {In: Inframation proceedings Vol. 10 (2009), 319-330}, pages = {319 -- 330}, year = {2009}, language = {en} } @inproceedings{VollmerVujkovićTrelluetal.2009, author = {Vollmer, Michael and Vujković, M. and Trellu, Y. and M{\"o}llmann, Klaus-Peter}, title = {IR feedback loops to spotlights: thermography and contemporary dancing}, series = {In: InfraMation proceedings.- Vol. 10 (2009), p. 89-97}, booktitle = {In: InfraMation proceedings.- Vol. 10 (2009), p. 89-97}, pages = {89 -- 97}, year = {2009}, language = {en} } @inproceedings{VollmerMoellmann2009, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {IR imaging of gases: quantitative analysis}, series = {In: InfraMation proceedings. - Vol. 10 (2009), p. 99-112}, booktitle = {In: InfraMation proceedings. - Vol. 10 (2009), p. 99-112}, pages = {99 -- 112}, year = {2009}, language = {en} } @inproceedings{VollmerMoellmann2009, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {IR imaging of gases: potential applications for CO2 cameras}, series = {In: InfraMation proceedings. - Vol. 10 (2009), p.113-124}, booktitle = {In: InfraMation proceedings. - Vol. 10 (2009), p.113-124}, pages = {113 -- 124}, year = {2009}, language = {en} } @inproceedings{VollmerMoellmann2010, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {New book on IR imaging: the ultimate resource for all users}, series = {In: InfraMation proceedings. - Vol. 11 (2010), pp 75-80}, booktitle = {In: InfraMation proceedings. - Vol. 11 (2010), pp 75-80}, pages = {75 -- 80}, year = {2010}, language = {en} } @inproceedings{PinnoVollmerMoellmann2010, author = {Pinno, Frank and Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Improved sensitivity for blower door thermography using image subtraction}, series = {In: InfraMation proceedings. - Vol. 11 (2010), p. 29-40}, booktitle = {In: InfraMation proceedings. - Vol. 11 (2010), p. 29-40}, pages = {29 -- 40}, year = {2010}, language = {en} } @inproceedings{MoellmannPinnoVollmer2010, author = {M{\"o}llmann, Klaus-Peter and Pinno, Frank and Vollmer, Michael}, title = {Two-color or ratio thermal imaging - potentials and limits}, series = {In: InfraMation proceedings. - Vol. 11 (2010), pp.41-56}, booktitle = {In: InfraMation proceedings. - Vol. 11 (2010), pp.41-56}, pages = {41 -- 56}, year = {2010}, language = {en} } @inproceedings{VollmerPinnoMoellmann2010, author = {Vollmer, Michael and Pinno, Frank and M{\"o}llmann, Klaus-Peter}, title = {Measurements of sun and moon with IR cameras: effects of air mass}, series = {In: InfraMation proceedings. - Vol. 11 ( 2010) , 57-74}, booktitle = {In: InfraMation proceedings. - Vol. 11 ( 2010) , 57-74}, pages = {74}, year = {2010}, language = {en} } @article{VollmerMoellmann2011, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Rainbows, water droplets, and seeing—slow motion analysis of experiments in atmospheric optics}, series = {In: Applied optics Vol. 50 (2011) 28, pp. F21-F28}, journal = {In: Applied optics Vol. 50 (2011) 28, pp. F21-F28}, doi = {http://dx.doi.org/10.1364/AO.50.000F21}, pages = {F21 -- F28}, year = {2011}, abstract = {Many physics processes underlying phenomena in atmospheric optics happen on a rather short time scale such that neither the human eye nor video cameras are able to analyze the details. We report applications of high-speed imaging of laboratory experiments in atmospheric optics with subsequent slow motion analysis. The potential to study respective transient effects is investigated in general and for a few phenomena in detail, in particular for rainbow scattering due to single oscillating droplets during free fall, and for light propagation effects through atmospheric paths with turbulences, leading, e.g., to scintillation of stars or shimmering of mirage images. © 2011 Optical Society of America}, language = {en} } @article{GedzelmanVollmer2011, author = {Gedzelman, Stanley David and Vollmer, Michael}, title = {Crepuscular rays: laboratory experiments and simulations}, series = {In: Applied Optics Vol. 50 (2011) 28, pp. F142-F151}, journal = {In: Applied Optics Vol. 50 (2011) 28, pp. F142-F151}, doi = {http://dx.doi.org/10.1364/AO.50.00F142}, year = {2011}, abstract = {Model simulations of laboratory-generated and natural crepuscular rays are presented. Rays are created in the laboratory with parallel light beams that pass through artificial fogs and milk-water solutions. Light scattered by 90° in a dilute mixture of whole milk first increases in intensity with distance from the source to a maximum as a result of multiple scattering by mainly small angles before decreasing exponentially due to extinction as distance continues to increase. Crepuscular rays are simulated for three cloud configurations. In case 1, the Sun at the zenith is blocked by a cloud with an overhanging anvil. The rays appear white against blue sky and are brightest when atmospheric turbidity, β≈11 . Shading by the anvil separates maximum brightness from apparent cloud edge. In case 2, a ray passes through a rectangular gap in a cloud layer. The ray is faint blue in a molecular atmosphere but turns pale yellow as β and solar zenith angle, ϕsun , increase. At ϕsun=60° it appears most striking when the cloud is optically thick, β≈5 , and the beam width Δx≈1000 m . In these cases, increasing aerosol radius, raer , to about 1000 nm brightens, narrows, and shortens rays. In case 3, the twilight Sun is shaded by a towering cloud or mountain. The shaded rays are deeper blue than the sunlit sky because the light originates higher in the atmosphere, where short waves have suffered less depletion from scattering. The long optical path taken by sunlight at twilight makes color and lighting contrasts of the rays greatest when the air is quite clean, i.e., for β-1≪1 . In all cases, the brightest rays occur when sunlight passes through an optical thickness of atmosphere, τ≈O(1) . © 2011 Optical Society of America}, language = {en} } @inproceedings{MoellmannVollmerWinburn2011, author = {M{\"o}llmann, Klaus-Peter and Vollmer, Michael and Winburn, M.}, title = {Optics of glass fronts of buildings: the science of skyscraper "death rays"}, series = {InfraMation proceedings. - 12 (2011), S. 79-92}, booktitle = {InfraMation proceedings. - 12 (2011), S. 79-92}, pages = {79 -- 92}, year = {2011}, language = {en} } @article{VollmerMoellmann2012, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {CO2 Detektion mit IR Kameras: Grundlagen, Experimente und Anwendungen}, series = {Technisches Messen : tm 79 (2012) 1, 65-72}, journal = {Technisches Messen : tm 79 (2012) 1, 65-72}, doi = {10.1524/teme.2012.0189}, year = {2012}, abstract = {Gasdetektion mit Infrarotkameras ist eine relativ neue Anwendung. Aufgrund der industriellen Bedeutung einiger Gase wurden sensitive Kameras mit Schmalbandfiltern entwickelt. Heute gibt es kommerzielle Systeme f{\"u}r die Detektion fl{\"u}chtiger Kohlenwasserstoffe, Schwefelhexafluorid und Kohlenmonoxid. In dieser Arbeit werden Laborergebnisse der Detektion von CO2 vorgestellt und potenzielle Anwendungen diskutiert.}, language = {de} } @inproceedings{VollmerMoellmannWood2012, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter and Wood, S.}, title = {Surprising warm edges associated with moisture on surfaces}, series = {In: InfraMation proceeding. - Vol. 13 (2012)}, booktitle = {In: InfraMation proceeding. - Vol. 13 (2012)}, year = {2012}, language = {en} } @inproceedings{MoellmannVollmer2012, author = {M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {Thermal effects due to focused light from glass fronts}, series = {InfraMation proceedings. - Vol. 13 (2012)}, booktitle = {InfraMation proceedings. - Vol. 13 (2012)}, year = {2012}, language = {de} } @inproceedings{PinnoMoellmannVollmer2012, author = {Pinno, Frank and M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {Dark colors of building walls - thermal problems due to solar load}, series = {In: InfraMation proceedings. - Vol. 13 (2012)}, booktitle = {In: InfraMation proceedings. - Vol. 13 (2012)}, year = {2012}, language = {en} } @article{HoheiselVollmerTraeger1993, author = {Hoheisel, W. and Vollmer, Michael and Tr{\"a}ger, F.}, title = {Laserdesorption von Metallatomen}, series = {In: Physikalische Bl{\"a}tter 49 (1993) 9, 795 - 799}, journal = {In: Physikalische Bl{\"a}tter 49 (1993) 9, 795 - 799}, doi = {10.1002/phbl.19930490909}, year = {1993}, abstract = {Beleuchtet man die Oberfl{\"a}che eines Festk{\"o}rpers mit Laserlicht, k{\"o}nnen darauf adsorbierte Atome oder Molek{\"u}le abgel{\"o}st werden. Solche Desorptionsprozesse sind in j{\"u}ngster Zeit in zahlreichen Experimenten untersucht worden, wobei sich das Interesse sowohl auf die Erforschung der zugrundeliegenden Mechanismen als auch auf m{\"o}gliche Anwendungen dieser Reaktionen, zum Beispiel zur gezielten Modifizierung von Oberfl{\"a}chen, konzentriert. Besonders interessant ist das laserinduzierte Aufbrechen von Bindungen zur Oberfl{\"a}che dann, wenn es nicht einfach als thermischer Prozeß durch eine Temperaturerh{\"o}hung hervorgerufen wird, sondern direkt auf einer elektronischen Anregung beruht. Solche nichtthermischen Prozesse werden selbst f{\"u}r Metalle beobachtet, obwohl die Kopplung der elektronischen Anregung an das Substrat hier besonders schnell abl{\"a}uft. Der zugrundeliegende Mechanismus beruht auf dem Zusammenspiel einer kollektiven Elektronenoszillation und einer lokalisierten Einzelelektronenanregung, wobei auch nichtlokale optische Effekte in der Metalloberfl{\"a}che eine wichtige Rolle spielen.}, language = {de} } @incollection{Vollmer1997, author = {Vollmer, Michael}, title = {Optical Spectroscopy of Metal Clusters}, series = {In: Atomic physics methods in modern research : selection of papers dedicated to Gisbert zu Putlitz on the occasion of his 65th birthday / K. Jungmann ... (ed.). - Berlin [u.a.] : Springer, 1997. - (Lecture notes in physics ; 499) ISBN 3-540-63716-8}, booktitle = {In: Atomic physics methods in modern research : selection of papers dedicated to Gisbert zu Putlitz on the occasion of his 65th birthday / K. Jungmann ... (ed.). - Berlin [u.a.] : Springer, 1997. - (Lecture notes in physics ; 499) ISBN 3-540-63716-8}, pages = {311 -- 334}, year = {1997}, language = {en} } @incollection{PlattPfeilstickerVollmer2007, author = {Platt, Ulrich and Pfeilsticker, Klaus and Vollmer, Michael}, title = {Radiation and Optics in the Atmosphere}, series = {In: Springer handbook of lasers and optics / Tr{\"a}ger (ed.). - New York : Springer, 2007 ISBN 978-0-387-95579-7}, booktitle = {In: Springer handbook of lasers and optics / Tr{\"a}ger (ed.). - New York : Springer, 2007 ISBN 978-0-387-95579-7}, pages = {1165 -- 1203}, year = {2007}, language = {en} } @incollection{PlattVollmerPfeilsticker2012, author = {Platt, Ulrich and Vollmer, Michael and Pfeilsticker, Klaus}, title = {Optical Phenomena in the Atmosphere}, series = {In: Springer handbook of lasers and optics : with 163 tables / Tr{\"a}ger (ed.). - 2. ed. - Berlin : Springer, 2012. - ISBN 978-3-642-19408-5}, booktitle = {In: Springer handbook of lasers and optics : with 163 tables / Tr{\"a}ger (ed.). - 2. ed. - Berlin : Springer, 2012. - ISBN 978-3-642-19408-5}, pages = {1493 -- 1517}, year = {2012}, language = {en} } @article{Vollmer1995, author = {Vollmer, Michael}, title = {"Wenn das Licht in Farben sich erbricht ...", Teil 2}, series = {In: Physik in unserer Zeit 26 (1995) 4, 176 - 184}, journal = {In: Physik in unserer Zeit 26 (1995) 4, 176 - 184}, doi = {10.1002/piuz.19950260406}, pages = {176 -- 184}, year = {1995}, language = {de} } @article{Vollmer1995, author = {Vollmer, Michael}, title = {"Wenn das Licht in Farben sich erbricht ...", Teil 1}, series = {In: : Physik in unserer Zeit 26 (1995) 3, 106 - 115}, journal = {In: : Physik in unserer Zeit 26 (1995) 3, 106 - 115}, doi = {10.1002/piuz.19950260303}, pages = {106 -- 115}, year = {1995}, abstract = {Fata Morgana, Regenb{\"o}gen, Sonnenhunde, Brockengespenst, gr{\"u}ne Sonnenstrahlen, D{\"a}mmerungsfarben bei klarer und tr{\"u}ber Atmosph{\"a}re. Diese optischen Erscheinungen der Atmosph{\"a}re bieten nicht nur faszinierende Anblicke, sondern beinhalten vor allem interessante Physik.}, language = {de} } @article{Vollmer1997, author = {Vollmer, Michael}, title = {Von den Ph{\"a}nomenen zur Physik: Atmosph{\"a}rische Optik in der Schule}, series = {In: Praxis der Naturwissenschaften / Physik 46 (1997) 3, 2-9}, journal = {In: Praxis der Naturwissenschaften / Physik 46 (1997) 3, 2-9}, pages = {2 -- 9}, year = {1997}, language = {de} } @article{Vollmer1997, author = {Vollmer, Michael}, title = {Lichtbrechung, Oasen und Luftschl{\"o}sser: Gibt es den Palast der Fata Morgana ?}, series = {In: Praxis der Naturwissenschaften / Physik 46 (1997) 3, 10-15}, journal = {In: Praxis der Naturwissenschaften / Physik 46 (1997) 3, 10-15}, pages = {10 -- 15}, year = {1997}, language = {de} } @article{TammerVollmer1997, author = {Tammer, R. and Vollmer, Michael}, title = {Regenb{\"o}gen in Wasser und edleren Tropfen}, series = {In: Praxis der Naturwissenschaften / Physik 46 (1997) 3, 15-23}, journal = {In: Praxis der Naturwissenschaften / Physik 46 (1997) 3, 15-23}, pages = {15 -- 23}, year = {1997}, language = {de} } @article{TammerTraenkleKarstaedtetal.1997, author = {Tammer, R. and Tr{\"a}nkle, E. and Karst{\"a}dt, Detlef and Vollmer, Michael}, title = {Spektakel bei Sonnenschein : Lichts{\"a}ulen, Sonnenhunde und und und ...}, series = {In: Praxis der Naturwissenschaften / Physik 46 (1997) 3, 24-30}, journal = {In: Praxis der Naturwissenschaften / Physik 46 (1997) 3, 24-30}, pages = {24 -- 30}, year = {1997}, language = {de} } @article{VollmerVollmer1997, author = {Vollmer, J. and Vollmer, Michael}, title = {Am Himmel geschehen Zeichen und Wunder : Aberglauben und Bauernregeln bei optischen Erscheinungen der Atmosph{\"a}re}, series = {In: Praxis der Naturwissenschaften / Physik 46 (1997) 3, 31-37}, journal = {In: Praxis der Naturwissenschaften / Physik 46 (1997) 3, 31-37}, pages = {31 -- 37}, year = {1997}, language = {de} } @article{Vollmer1997, author = {Vollmer, Michael}, title = {Der Regenbogen : Vorschlag zur Gestaltung einer interdisziplin{\"a}ren Unterrichtseinheit}, series = {In: Praxis der Naturwissenschaften / Physik 46 (1997) 7, 36-38}, journal = {In: Praxis der Naturwissenschaften / Physik 46 (1997) 7, 36-38}, pages = {36 -- 38}, year = {1997}, language = {de} } @article{Vollmer2001, author = {Vollmer, Michael}, title = {Strahlungsgesetz und Augenempfindlichkeit: Bemerkungen zu einer klassischen Fehlinterpretation}, series = {In: Der mathematische und naturwissenschaftliche Unterricht : MNU 54 (2001) 4, 196-200}, journal = {In: Der mathematische und naturwissenschaftliche Unterricht : MNU 54 (2001) 4, 196-200}, pages = {196 -- 200}, year = {2001}, language = {de} } @article{Vollmer1999, author = {Vollmer, Michael}, title = {Naturwissenschaftler auf Banknoten}, series = {In: Physik in unserer Zeit 30 (1999) 3, 114-117}, journal = {In: Physik in unserer Zeit 30 (1999) 3, 114-117}, doi = {10.1002/piuz.19990300305}, pages = {114 -- 117}, year = {1999}, abstract = {Portr{\"a}ts von Naturwissenschaftlern und sachliche Darstellungen aus der Physik finden sich in zahlreichen Bereichen des t{\"a}glichen Lebens, insbesondere auch auf vielen Banknoten. Die Auswahl -- vorgegeben durch die politisch inspirierte Motivwahl der Notenbanken -- stellt eine interessante Reise durch die Wissenschaftsgeschichte dar.}, language = {de} } @article{Vollmer1998, author = {Vollmer, Michael}, title = {Gespiegelt in besondern D{\"u}ften …: Oasen, Seeungeheuer und weitere Spielereien der Fata Morgana}, series = {In: Physikalische Bl{\"a}tter 54 (1998) 10, 903-909}, journal = {In: Physikalische Bl{\"a}tter 54 (1998) 10, 903-909}, doi = {.1002/phbl.19980541006}, pages = {903 -- 909}, year = {1998}, abstract = {„Wer die Natur liebt, der braucht das Beobachten ihrer Erscheinungen wie die Luft zum Atmen." — So formulierte Marcel Minnaert das Bed{\"u}rfnis der Naturbeobachtung im Vorwort seines ber{\"u}hmten Buchs „Licht und Farbe in der Natur" [1]. Bekannte Beispiele f{\"u}r Naturerscheinungen in der Atmosph{\"a}re sind Luftspiegelungen, Regenb{\"o}gen und Halos. Diese optischen Ph{\"a}nomene bieten nicht nur faszinierende Anblicke, sondern beinhalten auch gen{\"u}gend Aspekte f{\"u}r eine interessante Physik (z. B. [2]). — Der vorliegende Artikel geht von grundlegenden physikalischen Betrachtungen aus und zeigt, daß sich alle Ph{\"a}nomene atmosph{\"a}rischer Optik {\"u}bersichtlich klassifizieren lassen. Luftspiegelungen werden exemplarisch im Detail behandelt. Viele n{\"u}tzliche Informationen findet man in Standardwerken [1, 3-5]; den aktuellen Stand der Forschung in Konferenzberichten, z. B. [6].}, language = {de} } @article{Vollmer1999, author = {Vollmer, Michael}, title = {Motivation und Stellenwert physikalischer Freihand- und Low-Cost-Experimente in der Schule}, series = {In: Physik in der Schule 37 (1999) 3, 187-192}, journal = {In: Physik in der Schule 37 (1999) 3, 187-192}, pages = {187 -- 192}, year = {1999}, language = {de} } @article{VollmerMoellmann1999, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Beispiele physikalischer Freihand- und Low-Cost-Experimente in der Schule}, series = {In: Physik in der Schule 37 (1999) 5, 332-336}, journal = {In: Physik in der Schule 37 (1999) 5, 332-336}, pages = {332 -- 336}, year = {1999}, language = {de} } @article{KarstaedtPinnoMoellmannetal.1999, author = {Karst{\"a}dt, Detlef and Pinno, Frank and M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {Anschauliche W{\"a}rmelehre im Unterricht : ein Beitrag zur Visualisierung thermischer Vorg{\"a}nge}, series = {In:: Praxis der Naturwissenschaften / Physik 48 (1999) 5, 24-31}, journal = {In:: Praxis der Naturwissenschaften / Physik 48 (1999) 5, 24-31}, pages = {24 -- 31}, year = {1999}, language = {de} } @article{Vollmer2000, author = {Vollmer, Michael}, title = {Nach der Sonnenfinsternis in Deutschland: ein Nachschlag und Ausblick (auch) f{\"u}r die Schule}, series = {In: Physik in der Schule 38 (2000) 1, 50-54}, journal = {In: Physik in der Schule 38 (2000) 1, 50-54}, pages = {50 -- 54}, year = {2000}, language = {de} } @article{Vollmer2000, author = {Vollmer, Michael}, title = {Das ist ein seltsam wunderbares Zeichen! Ein Streifzug durch die Kulturgeschichte des Regenbogens}, series = {In: Naturwissenschaftliche Rundschau 53 (2000), 497 - 511}, journal = {In: Naturwissenschaftliche Rundschau 53 (2000), 497 - 511}, pages = {497 -- 511}, year = {2000}, language = {de} } @article{Vollmer1999, author = {Vollmer, Michael}, title = {Physikalische Texte zum Thema Atmosph{\"a}rische Optik}, series = {In: Meteorologischer Kalender 2000(1999)}, journal = {In: Meteorologischer Kalender 2000(1999)}, year = {1999}, language = {de} } @article{Vollmer2000, author = {Vollmer, Michael}, title = {Unschuldige Schule! : In den vergangenen Jahren hat zwar die Zahl der Physikstudenten dramatisch abgenommen, nicht aber die Zahl der Sch{\"u}ler, die in der Oberstufe Physik w{\"a}hlen}, series = {In: Physikalische Bl{\"a}tter 56 (2000) 6, 21-22}, journal = {In: Physikalische Bl{\"a}tter 56 (2000) 6, 21-22}, doi = {10.1002/phbl.20000560606}, pages = {21 -- 22}, year = {2000}, language = {de} } @article{MoellmannVollmer2000, author = {M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {Zauberei, Diffusion, industrielle Messtechnik und 100 Jahre Quantentheorie : Einige Freihandexperimente zur Optik und W{\"a}rmestrahlung}, series = {In: Physik in der Schule 38 (2000) 4, 260-262}, journal = {In: Physik in der Schule 38 (2000) 4, 260-262}, pages = {260 -- 262}, year = {2000}, language = {de} } @article{MoellmannVollmer2000, author = {M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {Eine etwas andere, physikalische Sehweise - Visualisierung von Energieumwandlungen und Strahlungsphysik f{\"u}r die (Hochschul-)lehre}, series = {In: Physikalische Bl{\"a}tter 56 (2000) 9, 65-69}, journal = {In: Physikalische Bl{\"a}tter 56 (2000) 9, 65-69}, doi = {10.1002/phbl.20000560915}, pages = {65 -- 69}, year = {2000}, abstract = {Max Planck legte 1900 mit dem nach ihm benannten Strahlungsgesetz das quantitative Fundament zu so genannten W{\"a}rmebildsystemen. 100 Jahre sp{\"a}ter gibt es — mit bedingt durch Fortschritte in der Halbleitertechnologie und Mikrosystemtechnik — Infrarotkameras, mit denen sowohl die von Planck untersuchten Strahlungsgesetze zur Hohlraumstrahlung als auch allgemein wissenschaftliche und technische Anwendungen der Temperaturstrahlung von K{\"o}rpern untersucht werden k{\"o}nnen. Dar{\"u}ber hinaus bieten sich solche Systeme auch f{\"u}r didaktische Zwecke an, da physikalische Gesetzm{\"a}ßigkeiten mit Energieaustauschprozesssen aus sehr vielen Gebieten der Physik durch eine etwas andere, physikalische Sehweise visualisiert und damit f{\"u}r Lehrzwecke eingesetzt werden k{\"o}nnen.}, language = {de} } @article{Vollmer2000, author = {Vollmer, Michael}, title = {Wahlverhalten von Sch{\"u}lern der Sekundarstufe II im Fach Physik seit 1990 im bundesweiten Vergleich}, series = {Physik in der Schule 38 (2000) 5, 351-354}, journal = {Physik in der Schule 38 (2000) 5, 351-354}, pages = {351 -- 354}, year = {2000}, language = {de} } @article{KarstaedtMoellmannVollmer2001, author = {Karst{\"a}dt, Detlef and M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {Coole Experimente}, series = {In: Physik in unserer Zeit 32 (2001) 5, 222-228}, journal = {In: Physik in unserer Zeit 32 (2001) 5, 222-228}, doi = {10.1002/1521-3943(200109)32:5<222::AID-PIUZ222>3.0.CO;2-4}, pages = {222 -- 228}, year = {2001}, abstract = {Experimente mit fl{\"u}ssigem Stickstoff kommen in der Lehre - vor allem an Hochschulen - bislang zu kurz. Dabei gibt es sch{\"o}ne Versuche aus nahezu allen Bereichen der Physik, die in Lehrveranstaltungen relativ einfach vorgef{\"u}hrt werden k{\"o}nnen. Wir stellen hier einige Experimente vor, die eindrucksvoll demonstrieren,wie sich physikalische Eigenschaften bei tiefen Temperaturen {\"a}ndern.}, language = {de} } @article{Vollmer2002, author = {Vollmer, Michael}, title = {Oasen, Seeungeheuer und weitere Spielereien der Fata Morgana}, series = {In: Naturph{\"a}nomene und Astronomie / Karl-Heinz Lotze ... (Hrsg.). - Erlangen : Palm \& Enke, 2002. - 296 S. - (Wege in der Physikdidaktik ; 5) ISBN 3-7896-0666-9}, journal = {In: Naturph{\"a}nomene und Astronomie / Karl-Heinz Lotze ... (Hrsg.). - Erlangen : Palm \& Enke, 2002. - 296 S. - (Wege in der Physikdidaktik ; 5) ISBN 3-7896-0666-9}, year = {2002}, language = {de} } @article{Vollmer2002, author = {Vollmer, Michael}, title = {Haloerscheinungen am Himmel: Nat{\"u}rliche Ursache oder g{\"o}ttliche Warnung}, series = {In: Naturph{\"a}nomene und Astronomie / Karl-Heinz Lotze ... (Hrsg.). - Erlangen : Palm \& Enke, 2002. - 296 S. - (Wege in der Physikdidaktik ; 5) ISBN 3-7896-0666-9}, journal = {In: Naturph{\"a}nomene und Astronomie / Karl-Heinz Lotze ... (Hrsg.). - Erlangen : Palm \& Enke, 2002. - 296 S. - (Wege in der Physikdidaktik ; 5) ISBN 3-7896-0666-9}, year = {2002}, language = {de} } @article{Vollmer2002, author = {Vollmer, Michael}, title = {Vakuumphysik im Alltag: Physikalische Freihand- und Low-cost-Experimente}, series = {In: PhyDid A - Physik und Didaktik in Schule und Hochschule 1 (2002) 1, 19-32}, journal = {In: PhyDid A - Physik und Didaktik in Schule und Hochschule 1 (2002) 1, 19-32}, pages = {19 -- 32}, year = {2002}, abstract = {Es werden eine Reihe einfacher Freihandexperimente zum Thema Unterdruck vorgestellt. Viele der Beispiele sind vom grundlegenden Aufbau her bekannt, gestatten jedoch neue Varianten, Erweiterungen bzw. die Korrektur von Fehlvorstellungen. Neben der Druckmessung in Einmachgl{\"a}sern und der Funktionsweise von Ausgussreinigern und Saughaken werden Druck- sowie Tragf{\"a}higkeitsmessungen an Staubsaugern diskutiert. Des weiteren wird untersucht, welche Saugh{\"o}he per Strohhalm realisiert werden kann. Es wird eine physikalisch einleuchtende, aber dennoch verbl{\"u}ffende Erweiterung des Versuchs mit dem umgedrehten Wasserglas pr{\"a}sentiert.}, language = {de} } @article{NiehusTrullMoellmannetal.2002, author = {Niehus, Christina and Trull, Thomas and M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {Wie viel Schwermetall ist im Trinkwasser?: Optische Spektroskopie}, series = {In: Physik in unserer Zeit 33 (2002) 6, 274-282}, journal = {In: Physik in unserer Zeit 33 (2002) 6, 274-282}, doi = {10.1002/1521-3943(200211)33:6<274::AID-PIUZ274>3.0.CO;2-V}, pages = {274 -- 282}, year = {2002}, abstract = {Die moderne optische Spektroskopie kann geringste Substanzmengen nachweisen. F{\"u}r schnelle Routinemessungen reichen konventionelle Zweistrahl-Spektralphotometer. Eine wesentlich h{\"o}here Nachweisempfindlichkeit im ppm- oder sogar ppb-Bereich erm{\"o}glichen das Atomabsorptions-Spektrometer (AAS) und das Fourier-Transformations-Infrarot-Spektrometer (FTIR). Ein AAS atomisiert die Probe vollst{\"a}ndig und weist dann einzelne Elemente nach. Deshalb ist es zum Beispiel f{\"u}r die Schwermetall-Analyse geeignet. Bei der Analyse von Molek{\"u}len dominieren heute FTIR-Ger{\"a}te. Ihr Herzst{\"u}ck ist meist ein Michelson-Interferometer. Zusammen mit schnellen Fourier-Algorithmen erlaubt es, sehr schnell breite Spektren aufzunehmen. Station{\"a}re und mobile FTIR-Ger{\"a}te k{\"o}nnen vielf{\"a}ltig eingesetzt werden.}, language = {de} } @article{Vollmer2003, author = {Vollmer, Michael}, title = {Physikdidaktik in Deutschland: Ergebnisse einer Umfrage der Europ{\"a}ischen Physikalischen Gesellschaft}, series = {In: PhyDid A, Physik und Didaktik in Schule und Hochschule 2 (2003) 2, 90 -99}, journal = {In: PhyDid A, Physik und Didaktik in Schule und Hochschule 2 (2003) 2, 90 -99}, pages = {90 -- 99}, year = {2003}, abstract = {Aufgrund einer Initiative der Division of Education der europ{\"a}ischen physikalischen Gesellschaft (EPS) wurde eine europaweite Umfrage zur Physiklehrerausbildung und Forschung in Bereich Fachdidaktik der Physik durchgef{\"u}hrt. Insgesamt wurden Fachleute in 30 L{\"a}ndern befragt. Da in der Bundesrepublik bez{\"u}glich der Lehrerausbildung mit den 16 verschiedenen Regularien der Bundesl{\"a}nder quasi ein kleines Europa existiert, wurde zus{\"a}tzlich jeweils mindestens ein Fachdidaktiker in jedem Bundesland befragt, um f{\"u}r Deutschland eine detaillierte Analyse vornehmen zu k{\"o}nnen. Insgesamt ergab sich in Deutschland ein R{\"u}cklauf von 22 Frageb{\"o}gen aus den 16 Bundesl{\"a}ndern. Die wesentlichen Ergebnisse der deutschen Umfrage werden im Zusammenhang mit fr{\"u}heren Studien und Empfehlungen zur Fachdidaktik vorgestellt.}, language = {de} } @incollection{NordmeierSchneiderVollmer2006, author = {Nordmeier, Volkhard and Schneider, Werner B. and Vollmer, Michael}, title = {Physiklehrerweiterbildung am Physikzentrum Bad Honnef}, series = {In: Physikzentrum Bad Honnef : ein Platz f{\"u}r Dialog und Inspiration / [Hrsg.: Berthold Schoch f{\"u}r die Physikalische Gesellschaft e.V.(DPG) und die Elly-H{\"o}lterhoff-B{\"o}cking-Stiftung der Rheinischen Friedrich-Wilhelms-Universit{\"a}t Bonn]. - [Bad Honnef] : DPG, 2006. - ISBN 978-3-9811161-0-6 , 3-9811161-0-0}, booktitle = {In: Physikzentrum Bad Honnef : ein Platz f{\"u}r Dialog und Inspiration / [Hrsg.: Berthold Schoch f{\"u}r die Physikalische Gesellschaft e.V.(DPG) und die Elly-H{\"o}lterhoff-B{\"o}cking-Stiftung der Rheinischen Friedrich-Wilhelms-Universit{\"a}t Bonn]. - [Bad Honnef] : DPG, 2006. - ISBN 978-3-9811161-0-6 , 3-9811161-0-0}, pages = {61 -- 63}, year = {2006}, language = {de} } @article{Vollmer2003, author = {Vollmer, Michael}, title = {Grundlagen der optischen Spektroskopie in der Schule}, series = {In: Praxis der Naturwissenschaften - Physik in der Schule 52 (2003) 4, 2-8}, journal = {In: Praxis der Naturwissenschaften - Physik in der Schule 52 (2003) 4, 2-8}, pages = {2 -- 8}, year = {2003}, language = {de} } @article{Vollmer2003, author = {Vollmer, Michael}, title = {Freihandexperimente zur Spektroskopie im Unterricht und als Hausaufgabe}, series = {In: Praxis der Naturwissenschaften - Physik in der Schule 52 (2003) 4, 9-18}, journal = {In: Praxis der Naturwissenschaften - Physik in der Schule 52 (2003) 4, 9-18}, pages = {9 -- 18}, year = {2003}, language = {de} } @article{NiehusMoellmannTrulletal.2003, author = {Niehus, Christina and M{\"o}llmann, Klaus-Peter and Trull, Thomas and Vollmer, Michael}, title = {Umweltanalytik mit Atomabsorptions- und Fourier-Transform-Infrarot- Spektroskopie}, series = {In: Praxis der Naturwissenschaften - Physik in der Schule 52 (2003) 4, 29-36}, journal = {In: Praxis der Naturwissenschaften - Physik in der Schule 52 (2003) 4, 29-36}, pages = {29 -- 36}, year = {2003}, language = {de} } @article{KreibigVollmer2003, author = {Kreibig, Uwe and Vollmer, Michael}, title = {Spektroskopie von Nanopartikeln}, series = {In: Praxis der Naturwissenschaften - Physik in der Schule 52 (2003) 4, 24-28}, journal = {In: Praxis der Naturwissenschaften - Physik in der Schule 52 (2003) 4, 24-28}, pages = {24 -- 28}, year = {2003}, language = {de} } @article{MoellmannVollmer2004, author = {M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {Kochen mit Zentimeterwellen: Die Physik der Haushaltsmikrowelle}, series = {In: Physik in unserer Zeit 35 (2004) 1, 38-44}, journal = {In: Physik in unserer Zeit 35 (2004) 1, 38-44}, doi = {10.1002/piuz.200401032}, pages = {38 -- 44}, year = {2004}, abstract = {Die Physik der Haushaltsmikrowelle ist erstaunlich reichhaltig: Sie umfasst die Erzeugung von Mikrowellen in Magnetrons, Wellenleiter und Resonatoren f{\"u}r elektromagnetische Felder, die dielektrische Relaxation bei der Orientierungspolarisation von Wasser, und die Eindringtiefe elektromagnetischer Wellen in Materie. Eine Absch{\"a}tzung der Bedingungen f{\"u}r Multiphotonenionisation und Dissoziation zeigt, dass Haushaltsmikrowellen Speisen chemisch nicht ver{\"a}ndern k{\"o}nnen.}, language = {de} } @article{KarstaedtMoellmannVollmer2004, author = {Karst{\"a}dt, Detlef and M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {Eier im Wellensalat: Experimente mit der Haushaltsmikrowelle}, series = {In: Physik in unserer Zeit 35 (2004) 2, 90-96}, journal = {In: Physik in unserer Zeit 35 (2004) 2, 90-96}, doi = {10.1002/piuz.200401033}, pages = {90 -- 96}, year = {2004}, abstract = {Haushaltsmikrowellen bieten ein interessantes Feld f{\"u}r einfache, teilweise spektakul{\"a}re Vorf{\"u}hrexperimente. Mit Thermofaxpapier und Infrarotkamera lassen sich zum Beispiel die Modenverteilungen des Zentimeterwellenfeldes im Garraum sichtbar machen. Eine Reihe von Versuchen kann die Absorption durch Metalle zeigen, besonders interessant sind dabei d{\"u}nne Dr{\"a}hte und Drahtspitzen: Lampenbirnen gl{\"u}hen und Wunderkerzen z{\"u}nden von selbst. Mikrowellen k{\"o}nnen auch Entladungslampen starten, Wasser im Eisblock erhitzen und Eier explodieren lassen.}, language = {de} }