@inproceedings{VollmerMoellmann2011, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {IR Imaging of CO~2: Basics, Experiments, and Potential Industrial Applications}, series = {In: Sensor + Test Conferences 2011 : N{\"u}rnberg Exhibition Centre, Germany, 7. - 9.6.2011 ; [including] SENSOR 2011, 15th International Conference on Sensors and Measurement Technology, OPTO 2011, photonic metrology, 10th International Conference on Optical Technologies for Sensing and Measurement, IRS2 2011, 12th International Conference on Infrared Sensors \& Systems ; short proceedings / AMA Fachverband f{\"u}r Sensorik e.V. - Wunstorf/Germany : AMA Service GmbH, 2011. - ISBN 978-3-9810993-8-6}, booktitle = {In: Sensor + Test Conferences 2011 : N{\"u}rnberg Exhibition Centre, Germany, 7. - 9.6.2011 ; [including] SENSOR 2011, 15th International Conference on Sensors and Measurement Technology, OPTO 2011, photonic metrology, 10th International Conference on Optical Technologies for Sensing and Measurement, IRS2 2011, 12th International Conference on Infrared Sensors \& Systems ; short proceedings / AMA Fachverband f{\"u}r Sensorik e.V. - Wunstorf/Germany : AMA Service GmbH, 2011. - ISBN 978-3-9810993-8-6}, pages = {240}, year = {2011}, language = {en} } @inproceedings{MoellmannLooseLutzetal.2003, author = {M{\"o}llmann, Klaus-Peter and Loose, Harald and Lutz, Norbert and Pinno, Frank}, title = {Emissionsgradkompensierte Temperaturmessung an hochreflektierenden Leichtmetalloberflachen}, series = {In: Temperatur 2003 : [Verfahren und Ger{\"a}te in der Temperatur- und Feuchtemesstechnik] ; Tagung Berlin, 8. und 9. September 2003 / VDI-VDE-Gesellschaft Mess- und Automatisierungstechnik. - D{\"u}sseldorf : VDI-Verl., 2003. - (VDI-Berichte , ISSN 0083-5560 ; 1784). - ISBN 3-18-091784-9}, booktitle = {In: Temperatur 2003 : [Verfahren und Ger{\"a}te in der Temperatur- und Feuchtemesstechnik] ; Tagung Berlin, 8. und 9. September 2003 / VDI-VDE-Gesellschaft Mess- und Automatisierungstechnik. - D{\"u}sseldorf : VDI-Verl., 2003. - (VDI-Berichte , ISSN 0083-5560 ; 1784). - ISBN 3-18-091784-9}, pages = {179 -- 186}, year = {2003}, language = {de} } @article{SchmidtMoellmannMuilwijketal.2002, author = {Schmidt, V. and M{\"o}llmann, Klaus-Peter and Muilwijk, F. and Kalz, S. and Stoppiglia, H.}, title = {Radiation thermometry on aluminium}, series = {In: Aluminium : international journal for industry, research and application 78(2002), 897-901}, journal = {In: Aluminium : international journal for industry, research and application 78(2002), 897-901}, issn = {0002-6689}, pages = {897 -- 901}, year = {2002}, language = {en} } @inproceedings{SchmidtMoellmannMuilwijketal.2002, author = {Schmidt, V. and M{\"o}llmann, Klaus-Peter and Muilwijk, F. and Stoppiglia, H.}, title = {Radiation thermometry on aluminium}, series = {In: Proc. of the ALUMEX Conference, Dubai, December 10 - 12, 2002}, booktitle = {In: Proc. of the ALUMEX Conference, Dubai, December 10 - 12, 2002}, year = {2002}, language = {en} } @article{HerrmanAuthMoellmannetal.1993, author = {Herrman, K. H. and Auth, J. and M{\"o}llmann, Klaus Peter and Tomm, J. W. and Bottner, H. and Lambrecht, A. and Tacke, M. and Kolesnikov, V. and Yunovich, A. E. and Fedorenko, A. I. and Mironov, O. A. and Sipatov, A. Yu}, title = {Band offsets in Eu-containing lead chalcogenides and lead chalcogenide superlattices from spectroscopic data}, series = {In: Semiconductor Science and Technology Vol. 8 (1993) 1S, pp S176-S179}, journal = {In: Semiconductor Science and Technology Vol. 8 (1993) 1S, pp S176-S179}, issn = {1361-6641}, doi = {10.1088/0268-1242/8/1S/040}, pages = {S176 -- S179}, year = {1993}, abstract = {The results of an experimental study of the optical and photoelectrical properties of Eu-containing lead chalcogenides and superlattices are presented. From both sets of experiments band offset data for the lead chalcogenide-europium chalcogenide heterojunction are derived. The results are compared with the data obtained from a linear interpolation of the band structures between those of the binaries.}, language = {en} } @article{GaertnerKlattLooseetal.2004, author = {G{\"a}rtner, R. and Klatt, P. and Loose, Harald and Lutz, Norbert and M{\"o}llmann, Klaus-Peter and Pinno, Frank and Muilwijk, F. and Kalz, S. and Stoppiglia, H.}, title = {New Aluminium Radiation Thermometry}, series = {In: Aluminium : international journal for industry, research and application Vol. 80 (2004), S. 642-647}, journal = {In: Aluminium : international journal for industry, research and application Vol. 80 (2004), S. 642-647}, issn = {0002-6689}, pages = {642 -- 647}, year = {2004}, language = {en} } @inproceedings{OgwuHellwigDohertyetal.2005, author = {Ogwu, Abraham and Hellwig, Thomas and Doherty, Saul and Haddow, David and M{\"o}llmann, Klaus-Peter and Placido, Frank}, title = {Surface characterisation and surface measurements on Boron Phosphide films prepared by PECVD}, series = {In: Window and dome technologies and materials IX : 28 - 29 March 2005, Orlando, Florida, USA ; [held as part of the SPIE Defense \& Security Symposium] / sponsored and publ. by SPIE, the International Society for Optical Engineering. Cooperating organizations: Ball Aerospace \& Technologies Corporation (USA) ... Randal W. Tustison, chair/ed. - Bellingham, Wash. : SPIE, 2005. - (Proceedings // SPIE, International Society for Optical Engineering : P, ISSN 0038-7355 ; 5786). - ISBN 0-8194-5771-X}, booktitle = {In: Window and dome technologies and materials IX : 28 - 29 March 2005, Orlando, Florida, USA ; [held as part of the SPIE Defense \& Security Symposium] / sponsored and publ. by SPIE, the International Society for Optical Engineering. Cooperating organizations: Ball Aerospace \& Technologies Corporation (USA) ... Randal W. Tustison, chair/ed. - Bellingham, Wash. : SPIE, 2005. - (Proceedings // SPIE, International Society for Optical Engineering : P, ISSN 0038-7355 ; 5786). - ISBN 0-8194-5771-X}, pages = {130 -- 136}, year = {2005}, language = {en} } @article{VollmerMoellmannSchlichting2014, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter and Schlichting, Hans Joachim}, title = {Double pane windows—elastic deformations, gas thermodynamics, thermal and optical phenomena}, series = {In: European Journal of Physics 35 (2014) 4, 045023}, journal = {In: European Journal of Physics 35 (2014) 4, 045023}, doi = {10.1088/0143-0807/35/4/045023}, year = {2014}, abstract = {Double pane windows are common objects which can enrich physics teaching at undergraduate level at least in five different fields. First, having sealed inner spaces filled with gas, one can discuss gas law problems upon changes of pressure and/or temperature. Second, when discussing temperature differences between inside and outside, one needs to take into account the associated heat transfer mechanisms which define the pane temperatures, enclosing the gas. Third, using elastic properties of the glass, one may treat deformations of the window panes upon those changes or additional manually applied external pressure. Fourth, the reflective properties of glass combined with the pane deformations result in concave or convex mirrors, which when illuminated by the Sun, may lead to focal points on projection areas such as facing houses. Fifth, such areas receive an increased irradiance which leads to associated thermal effects. Starting from the most obvious daily life phenomenon, the fascinating caustics of reflected sunlight on streets or walls, all of these double pane window phenomena are investigated experimentally as well as theoretically.}, language = {en} } @article{VollmerMoellmann2014, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Schnelles Verblassen leuchtender Spuren}, series = {In: Physik in unserer Zeit 45 (2014) 5, 252-253}, journal = {In: Physik in unserer Zeit 45 (2014) 5, 252-253}, doi = {10.1002/piuz.201490088}, pages = {252 -- 253}, year = {2014}, abstract = {Wohl jeder, der schon einmal mit Physik zu tun hatte, kennt die meist gr{\"u}nlichen Leuchtspuren von Oszillographen. Sie erm{\"o}glichen es, zeitabh{\"a}ngige Signale zu visualisieren und quantitativ auszumessen, insbesondere auch dann, wenn die Ph{\"a}nomene sehr schnell ablaufen. Die Reaktionsdynamik der leuchtenden Phosphore auf den Bildschirmen wird mit Hochgeschwindigkeits-Videos deutlich sichtbar.}, language = {de} } @article{VollmerMoellmann2014, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Wenn es knallt und kracht}, series = {In: Physik in unserer Zeit 45 (2014) 3, 148-149}, journal = {In: Physik in unserer Zeit 45 (2014) 3, 148-149}, doi = {10.1002/piuz.201490046}, pages = {148 -- 149}, year = {2014}, abstract = {An die Knallgasprobe erinnert sich wohl noch jeder aus dem Chemieunterricht. Die Zeitskala, auf der Wasserstoff und Sauerstoff reagieren h{\"a}ngt davon ab, ob die beiden Reaktionsgase zu Beginn getrennt oder gemischt vorliegen. Dies zeigt sich deutlich in Hochgeschwindigkeits-Aufnahmen von Experimenten, bei denen Luftballons entweder mit reinem Wasserstoff oder aber mit Knallgas gef{\"u}llt werden.}, language = {de} } @article{VollmerMoellmann2014, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Achtung Solarofen : Kaustiken von Hochhausverglasungen}, series = {In: Physik in unserer Zeit 45 (2014) 3, 134-139}, journal = {In: Physik in unserer Zeit 45 (2014) 3, 134-139}, doi = {10.1002/piuz.201401360}, pages = {134 -- 139}, year = {2014}, abstract = {Konkav gew{\"o}lbte Glasfassaden von Großbauten k{\"o}nnen bei ung{\"u}nstiger Orientierung zur Sonne zum Brennspiegel werden. Unfreiwillig ber{\"u}hmt gewordene Beispiele sind das Vdara-Hotel in Las Vegas und das "Walkie-Talkie"-Hochhaus in London. Dieser Effekt tritt auch nur an bestimmten Tagen bei passendem Sonnenstand auf. Da die Fassaden keine perfekten Parabolspiegel sind, produzieren sie keinen scharfen Brennpunkt, sondern aufgeweitete Brennflecke, sogenannte Kaustiken. Trotzdem k{\"o}nnen dort hohe Bestrahlungsst{\"a}rken auftreten. Simulationen und Experimente mit Modellen best{\"a}tigen dies.}, language = {de} } @article{VollmerMoellmann2014, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Das farbenpr{\"a}chtige Glitzern frischen Schnees}, series = {In: Physik in unserer Zeit 45 (2014) 2, 97-98}, journal = {In: Physik in unserer Zeit 45 (2014) 2, 97-98}, doi = {10.1002/piuz.201490031}, pages = {97 -- 98}, year = {2014}, abstract = {Regenb{\"o}gen, Halos, Koronen, Himmelsfarben - es gibt eine Vielzahl farbenpr{\"a}chtiger Ph{\"a}nomene in der Natur, verursacht durch Reflexion, Brechung oder allgemein gesprochen durch Streuung des Lichts an Wassertropfen, Eiskristallen oder Aerosolen. Das farbige Glitzern einer Schneeschicht scheint zun{\"a}chst anderer Natur zu sein, l{\"a}sst sich aber auf analoge Weise erkl{\"a}ren.}, language = {de} } @article{VollmerMoellmann2014, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Physikalische Zauberei : die Kette im Ring}, series = {In: Physik in unserer Zeit 45 (2014) 1, 44-45}, journal = {In: Physik in unserer Zeit 45 (2014) 1, 44-45}, doi = {10.1002/piuz.201490004}, pages = {44 -- 45}, year = {2014}, abstract = {Ein einfacher physikalischer Zaubertrick besteht darin, eine Kette {\"u}ber den Handr{\"u}cken zu legen und danach von unten einen Ring {\"u}ber die Kette zu schieben. Der Ring kann entweder von der zweiten Hand oder der die Kette haltenden Hand gehalten werden. Er wird sodann losgelassen und soll (mit einem Knoten) in der Kette h{\"a}ngen bleiben.}, language = {de} } @inproceedings{PinnoMoellmannVollmer2013, author = {Pinno, Frank and M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {Moisture detection at building walls using evaporative cooling}, series = {In: InfraMation proceedings. - Vol. 14 (2013)}, booktitle = {In: InfraMation proceedings. - Vol. 14 (2013)}, year = {2013}, language = {en} } @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{VollmerMoellmann2013, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {The magic of the invisible: using IR imaging in physics education}, series = {In: InfraMation proceedings / Infrared Training Center. - Vol. 14 (2013)}, booktitle = {In: InfraMation proceedings / Infrared Training Center. - Vol. 14 (2013)}, year = {2013}, language = {en} } @article{VollmerMoellmann2013, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Characterization of IR cameras in student labs}, series = {In: European journal of physics 34 (2013) 6,}, journal = {In: European journal of physics 34 (2013) 6,}, doi = {doi:10.1088/0143-0807/34/6/S73}, pages = {S73 -- S90}, year = {2013}, abstract = {The content of a student lab course is described which deals with characterization of the most important parameters governing the performance of infrared cameras. In detail, the parameters describing the temperature resolution, spatial resolution and time resolution of commercial IR cameras are analysed using simple lab experiments. Understanding the respective performance of the system is the prerequisite for applying infrared thermal imaging to quantitative measurements in physics and technology.}, language = {en} } @article{MoellmannVollmer2013, author = {M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {Fourier transform infrared spectroscopy in physics laboratory courses}, series = {In: European journal of physics 34 (2013) 6, S123-S137}, journal = {In: European journal of physics 34 (2013) 6, S123-S137}, doi = {doi:10.1088/0143-0807/34/6/S123}, pages = {S123 -- S137}, year = {2013}, abstract = {nfrared spectrometry is one of the most important tools in the field of spectroscopic analysis. This is due to the high information content of spectra in the so-called spectroscopic fingerprint region, which enables measurement not only of gases, but also of liquids and solids. Today, infrared spectroscopy is almost completely dominated by Fourier transform infrared (FTIR) spectroscopy. FTIR spectroscopy is able to detect minute quantities in the ppm and ppb ranges, and the respective analyses are now standard tools in science as well as industry. Therefore FTIR spectroscopy should be taught within the standard curriculum at university to physicists and engineers. Here we present respective undergraduate laboratory experiments designed for students at the end of their third year. Experiments deal first with understanding the spectrometer and second with recording and analysing spectra. On the one hand, transmission spectra of gases are treated which relate to environmental analytics (being probably the most prominent and well-known examples), and on the other hand, the focus is on the transmission and reflection spectra of solids. In particular, silicon wafers are studied—as is regularly done in the microelectronics industry—in order to characterize their thickness, oxygen content and phonon modes.}, language = {en} } @article{VollmerMoellmann2013, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {James Bond und die zerplatzenden Christbaumkugeln}, series = {Physik in unserer Zeit 44 (2013) 6, 304-306}, journal = {Physik in unserer Zeit 44 (2013) 6, 304-306}, doi = {10.1002/piuz.201390109}, pages = {304 -- 306}, year = {2013}, abstract = {Rohe Eier oder wassergef{\"u}llte Christbaumkugeln platzen beim Eindringen des Projektils einer Luftpistole. Dieser Vorgang l{\"a}sst sich einfach durch die sehr geringe Kompressibilit{\"a}t des Wassers und eine damit verbundene starke Druckerh{\"o}hung erkl{\"a}ren (Physik in unserer Zeit 2013, 44(5), 251). Eine genaue Analyse aller Vorg{\"a}nge sollte aber auch Fragen beantworten wie: Spielen vorhandene Luftblasen in der Fl{\"u}ssigkeit eine Rolle? Wie lange dauert es bis zum Aufplatzen, und muss die wassergef{\"u}llte Kugel eigentlich fest verschlossen sein?}, language = {de} } @article{GrossmannMoellmannVollmer2015, author = {Großmann, Michael and M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {Artificially generated halos: rotating sample crystals around various axes}, series = {Appield Optics 54 (2015) 4, B97-B106}, journal = {Appield Optics 54 (2015) 4, B97-B106}, doi = {10.1364/AO.54.000B97}, pages = {B97 -- B106}, year = {2015}, abstract = {Abstract So far experiments with artificial halos from single transparent crystals have suffered from the lack of apparatus that allows simultaneous rotation around two and three axes. A new setup is presented which overcomes these restrictions by combining electrical as well as pneumatic concepts. This enables reproducible experiments of the most common halos observed in nature and for the first time artificial ring halos from single hexagons rotating around three axes simultaneously. In addition, an old qualitative halo demonstration based on perceived colors of rotating colored areas whose contours represent scattering plots has been reinvestigated and the usually nonsaturated color of artificial parhelia was visualized using a crossed prism method. These new experiments are discussed in the context of all known artificial halo experiments. © 2014 Optical Society of America}, language = {en} } @article{VollmerMoellmannShaw2015, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter and Shaw, Joseph A.}, title = {The optics and physics of near infrared imaging}, series = {Proceedings of SPIE 9793, Education and Training in Optics and Photonics: ETOP 2015, 97930Z (October 8, 2015)}, journal = {Proceedings of SPIE 9793, Education and Training in Optics and Photonics: ETOP 2015, 97930Z (October 8, 2015)}, doi = {10.1117/12.2223094}, year = {2015}, abstract = {abstract A large part of photonics research and development, as well as commercial applications such as optical data transmission or infrared thermal imaging, occurs in the infrared spectral range between 0.8 μm and 15 μm. However, relatively little material is so far available for experimentally teaching the physics and optics of this spectral range. We report a respective new approach in the near infrared (NIR) range between 0.8 μm and 1.7 μm that allows visualization of a number of fascinating physics phenomena. First, we use the near-infrared sensitivity of silicon-based detectors in rather inexpensive video cameras and digital single-lens reflex cameras by removing the infrared-blocking filter and replacing it with a visible-radiation blocking filter. Second, we utilize modern NIR cameras based on InGaAs detectors. With both camera types we illustrate and explain a number of physics concepts that are especially suitable for curricula in optics and photonics. Examples include the strangely bright appearance of vegetation, contrast enhancement between clouds and sky, the initially surprising differences of optical material properties between the VIS and NIR range, the possibilities of visualizing buried hidden structures and texts, and recent medical applications to locate blood vessels below the skin. © (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.}, language = {en} } @article{VollmerMoellmann2015, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Bouncing Poppers}, series = {The Physics Teacher 53 (2015) 8, 489.493}, journal = {The Physics Teacher 53 (2015) 8, 489.493}, doi = {10.1119/1.4933153}, year = {2015}, abstract = {Abstract Toys are known to attract interest in physics and they are therefore often used in physics teaching of various topics. The present paper deals with a simple toy, the so-called "hopper popper," which, similar to superballs, can be used when teaching mechanics. We suggest some experiments and describe the basic physics of this toy, also providing background information for teachers.}, language = {en} } @article{VollmerMoellmann2015, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {The tablecloth pull revisited}, series = {Physics Education 50 (2015) 3}, journal = {Physics Education 50 (2015) 3}, pages = {324 -- 328}, year = {2015}, abstract = {Abstract A very old and well-known magical trick is the so-called tablecloth pull. A table is covered with a tablecloth, on top of which are certain objects. The task is to remove the tablecloth while the objects—which must not be touched—stay on top of the table. This article describes the physics behind the experiment, and presents examples recorded with high-speed cameras.}, language = {en} } @article{VollmerMoellmann2015, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Flickering lamps}, series = {European Journal of Physics 36 (2015) 3}, journal = {European Journal of Physics 36 (2015) 3}, doi = {10.1088/0143-0807/36/3/035027}, pages = {035027}, year = {2015}, abstract = {Abstract Many processes in electromagnetism vary with time. Some of them are well known, in particular those related to line frequencies of 50 Hz or 60 Hz such as fluctuating light output of discharge and incandescent lamps. The flickers of discharge and incandescent lamps have quite different physical principles involved, which are investigated experimentally using high-speed cameras and theoretically using simplified models. The topic is related to other phenomena such as the transient behaviour of phosphor layers covering the screen of oscilloscopes and the time-varying Lorentz force acting on the filament of light bulbs. All studies are well suited for teaching selected aspects of electromagnetism and light at undergraduate level at university.}, language = {en} } @article{VollmerMoellmann2015, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Light-emitting pickles}, series = {Physics Education 50 (2015) 1}, journal = {Physics Education 50 (2015) 1}, pages = {94 -- 104}, year = {2015}, abstract = {Abstract We present experiments giving new insights into the classical light-emitting pickle experiment. In particular, measurements of the spectra and temperatures, as well as high-speed recordings, reveal that light emission is connected to the polarity of the electrodes and the presence of hydrogen.}, language = {en} } @article{VollmerMoellmann2015, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Krach-bumm-peng - B{\"o}ller und Tischfeuerwerke}, series = {Physik in unserer Zeit 46 (2015) 6, 305-306}, journal = {Physik in unserer Zeit 46 (2015) 6, 305-306}, doi = {10.1002/piuz.201590105}, pages = {305 -- 306}, year = {2015}, abstract = {Abstract Zu Silvester wird es wieder krachen und knallen, draußen oder drinnen. Hochgeschwindigkeits-Videos von Chinakrachern offenbaren deren dynamische Explosionsphase. Auch die weniger spektakul{\"a}ren Tischfeuerwerke zeigen noch so manches interessante Detail.}, language = {de} } @article{VollmerMoellmann2015, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Flimmernde Luft und funkelnde Sterne}, series = {Physik in unserer Zeit 46 (2015) 5, 254-255}, journal = {Physik in unserer Zeit 46 (2015) 5, 254-255}, doi = {10.1002/piuz.201590087}, pages = {254 -- 255}, year = {2015}, abstract = {Abstract Das Flimmern der Sterne, von manchen als romantisch empfunden, ist f{\"u}r Astronomen ein {\"A}rgernis. Selbst bei klarer Luft scheinen die Sterne herumzuh{\"u}pfen und in st{\"a}ndiger Bewegung zu sein. Das Maß des Seeings, wie die Wissenschaftler sagen, beschr{\"a}nkt das r{\"a}umliche Aufl{\"o}sungsverm{\"o}gen von Teleskopen. Mit einer einfachen Versuchsanordnung und einer Hochgeschwindigkeits-Kamera l{\"a}sst sich dieses Ph{\"a}nomen im Labor nachstellen und analysieren.}, language = {de} } @article{VollmerMoellmann2015, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Der Trick mit der Tischdecke}, series = {Physik in unserer Zeit 46 (2015) 4, 199-201}, journal = {Physik in unserer Zeit 46 (2015) 4, 199-201}, doi = {10.1002/piuz.201590067}, pages = {199 -- 201}, year = {2015}, abstract = {Abstract Eine Tischdecke unter einem Service feinsten Porzellans wegzuziehen ohne dass etwas vom Tisch f{\"a}llt und zerbricht ist sicher eine Herausforderung. Aber viele Vorf{\"u}hrungen, auch in Experimentalphysik-Vorlesungen beweisen: es funktioniert. Hochgeschwindigkeits-Videos k{\"o}nnen diesen heiklen Experimenten physikalische Details entlocken.}, language = {de} } @article{VollmerMoellmann2015, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Springende H{\"u}pfgummis}, series = {Physik in unserer Zeit 46 (2015) 3, 149-150}, journal = {Physik in unserer Zeit 46 (2015) 3, 149-150}, doi = {10.1002/piuz.201590049}, pages = {149 -- 150}, year = {2015}, abstract = {Abstract H{\"u}pfgummis sind einfache, preiswerte Spielzeuge, die in Spielwarenl{\"a}den oder Science Centern erh{\"a}ltlich sind. Sie erm{\"o}glichen interessante Einblicke in physikalische Ph{\"a}nomene der Mechanik - insbesondere mit Hochgeschwindigkeits-Videos.}, language = {de} } @article{VollmerMoellmann2015, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Die Gurke leuchtet komplex}, series = {Physik in unserer Zeit 46 (2015) 2, 78-83}, journal = {Physik in unserer Zeit 46 (2015) 2, 78-83}, doi = {10.1002/piuz.201401388}, pages = {78 -- 83}, year = {2015}, abstract = {Abstract Das Experiment, bei dem eine Essiggurke elektrisch stimuliert leuchtet, geh{\"o}rt zum Standardrepertoire vieler Schulen und Hochschulen. Meist wird es zur Elektrizit{\"a}tslehre oder zur Atomphysik vorgef{\"u}hrt, inklusive vordergr{\"u}ndig einleuchtender Erkl{\"a}rung. Eine genauere Untersuchung zeigt jedoch, dass der Mechanismus komplexer als gedacht ist. Die Lichtemission entsteht in einem Zusammenspiel von Elektrolyse und hohen Elektrodentemperaturen. Dabei regen wahrscheinlich vor allem exotherme Wasserstoff- oder Knallgasreaktionen das Natriumlicht an.}, language = {de} } @article{VollmerMoellmann2014, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Flackernde Entladungslampen unter der (Zeit-)lupe}, series = {Physik in unserer Zeit 45 (2014) 4, 199-200}, journal = {Physik in unserer Zeit 45 (2014) 4, 199-200}, doi = {10.1002/piuz.201490064}, pages = {199 -- 200}, year = {2014}, abstract = {Abstract Wer kennt es nicht, das Flackern von Lampen, das bei empfindlichen Menschen Kopfschmerzen verursachen kann? So etwas kann bei Entladungsr{\"o}hren mit ung{\"u}nstigen Eigenschaften der phosphorisierenden Beschichtung auftreten. Mit moderner Technik l{\"a}sst sich dieses Problem l{\"o}sen. Hochgeschwindigkeits-Videos zeigen verschiedene Ph{\"a}nomene, die beim Betrieb von Entladungsr{\"o}hren auftreten.}, language = {de} } @article{VollmerMoellmann2016, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Stehaufkreisel - a never ending story}, series = {Physik in unserer Zeit}, volume = {47}, journal = {Physik in unserer Zeit}, number = {2}, doi = {10.1002/piuz.201601435}, pages = {96 -- 97}, year = {2016}, abstract = {Abstract Stehaufkreisel sind faszinierende physikalische Spielzeuge, die scheinbar die Schwerkraft auszutricksen verm{\"o}gen: Nach anf{\"a}nglicher Rotation drehen sie sich so um, dass sie schließlich auf der fr{\"u}heren Spitze rotieren. Hochgeschwindigkeits-Videos erm{\"o}glichen es, die komplizierten mathematischen L{\"o}sungen ihrer Bewegung experimentell zu {\"u}berpr{\"u}fen.}, language = {de} } @misc{VollmerMoellmann2011, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {High speed - slow motion: fascinating phenomena observed in hands-on experiments}, year = {2011}, language = {en} } @misc{VollmerMoellmann2013, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Thermographie im Physikunterricht}, year = {2013}, language = {de} } @misc{Moellmann2013, author = {M{\"o}llmann, Klaus-Peter}, title = {Praxis der Strahlungsthermometrie}, year = {2013}, language = {de} } @misc{Moellmann2013, author = {M{\"o}llmann, Klaus-Peter}, title = {Position related spectra within experimental parhelia}, year = {2013}, language = {en} } @misc{MoellmannVollmaer2013, author = {M{\"o}llmann, Klaus-Peter and Vollmaer, Michael}, title = {High-Speed-Kameras im Physikunterricht}, year = {2013}, language = {de} } @misc{Moellmann2013, author = {M{\"o}llmann, Klaus-Peter}, title = {The Allure of Multicolored Images - Building Thermography Examined Closely}, year = {2013}, language = {en} } @misc{MoellmannVollmer2014, author = {M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {Experimente mit IR- Kameras}, year = {2014}, language = {de} } @misc{MoellmannVollmer2014, author = {M{\"o}llmann, Klaus-Peter and Vollmer, Michael}, title = {The Basics Science and History of Thermal Imaging}, year = {2014}, language = {en} } @misc{Moellmann2013, author = {M{\"o}llmann, Klaus-Peter}, title = {Einfache Charakterisierung der zeitlichen und r{\"a}umlichen Aufl{\"o}sung von W{\"a}rmebildkameras}, year = {2013}, language = {de} } @misc{Moellmann2013, author = {M{\"o}llmann, Klaus-Peter}, title = {Theorie und Praxis der Strahlungsthermometrie}, year = {2013}, language = {de} } @misc{SocherBeckSchraderetal.2017, author = {Socher, Rolf and Beck, Eberhard and Schrader, Thomas and L{\"o}we, Katharina and Kindsm{\"u}ller, Martin Christof and Syrjakow, Michael and Vielhauer, Claus and Liefold, Marius and Hasche, Eberhard and G{\"o}tze, Thomas and Goecke, Sven-Frithjof and Hirsch, S{\"o}ren and Hoier, Bernhard and Kraska, Martin and Malessa, Reiner and M{\"o}llmann, Klaus-Peter and Pinno, Frank and Mieke, Christian and Vollmer, Michael and Burger-Menzel, Bettina and Frosch, Katharina and Johannsen, Andreas and Meiser, Vera G. and Scheeg, Jochen and Schwill, J{\"u}rgen and H{\"o}ding, Michael and L{\"u}thy, Anja and Stokar von Neuforn, Daniela and Wilms, Andreas and Edel, Karl-Otto and Pusch, Gerhard and Parsch, Stefan and H{\"o}ft, Uwe and Loose, Harald and Tetzlaff, Laura and Orlowski, Katja and Kell, Gerald}, title = {Forschungsbericht der Technischen Hochschule Brandenburg 2015-2016}, edition = {Berichtszeitraum: WS 2014/15; SS 2016}, publisher = {Technische Hochschule Brandenburg}, address = {Brandenburg an der Havel}, organization = {Technische Hochschule Brandenburg}, issn = {1861-3462}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:522-opus4-19510}, pages = {154}, year = {2017}, abstract = {Mit den Forschungsberichten bietet die Technische Hochschule Brandenburg einen regelm{\"a}ßigen {\"U}berblick zu den Forschungsthemen und -projekten der Hochschule.}, language = {de} } @inproceedings{VollmerMoellmann2017, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Teaching physics and understanding infrared thermal imaging}, series = {14th Conference on Education and Training in Optics and Photonics, ETOP 2017, 2017, Hangzhou, China}, booktitle = {14th Conference on Education and Training in Optics and Photonics, ETOP 2017, 2017, Hangzhou, China}, doi = {10.1117/12.2266142}, year = {2017}, language = {en} } @article{VollmerMoellmann2016, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Funken im Labor: kleine Br{\"u}der der Blitze}, series = {Physik in unserer Zeit}, volume = {47}, journal = {Physik in unserer Zeit}, number = {3}, issn = {1521-3943 (Online)}, doi = {10.1002/piuz.201601444}, pages = {149 -- 150}, year = {2016}, language = {de} } @article{VollmerMoellmann2016, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Elko oder B{\"o}ller: die Polung macht's!}, series = {Physik in unserer Zeit}, volume = {47}, journal = {Physik in unserer Zeit}, number = {4}, issn = {1521-3943 (Online)}, doi = {10.1002/piuz.201601448}, pages = {200 -- 201}, year = {2016}, language = {de} } @article{VollmerMoellmann2016, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Fl{\"u}chtige Regenb{\"o}gen einzelner Tropfen}, series = {Physik in unserer Zeit}, volume = {47}, journal = {Physik in unserer Zeit}, number = {6}, doi = {10.1002/piuz.201601457}, pages = {305 -- 307}, year = {2016}, language = {de} } @article{VollmerMoellmann2017, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Und es werde Feuer}, series = {Physik in unserer Zeit}, volume = {48}, journal = {Physik in unserer Zeit}, number = {1}, issn = {1521-3943 (Online)}, doi = {10.1002/piuz.201601467}, pages = {43 -- 44}, year = {2017}, language = {de} } @article{VollmerMoellmann2017, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Und es werde Feuer}, series = {Physik in unserer Zeit}, volume = {48}, journal = {Physik in unserer Zeit}, number = {2}, issn = {1521-3943 (Online)}, doi = {10.1002/piuz.201701474}, pages = {96 -- 97}, year = {2017}, language = {de} } @article{VollmerMoellmann2016, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Music through the skin—simple demonstration of human electrical conductivity}, series = {Physics education}, volume = {51}, journal = {Physics education}, number = {3}, issn = {1361-6552 (Online)}, pages = {03402}, year = {2016}, language = {en} } @inproceedings{VollmerMoellmann2016, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {NIR photography and NIR thermal cameras}, series = {InfraMation 2016, Las Vegas, Nevada, September 27-29, 2016}, booktitle = {InfraMation 2016, Las Vegas, Nevada, September 27-29, 2016}, year = {2016}, language = {en} } @book{VollmerMoellmann2017, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Infrared Thermal Imaging}, edition = {2. Auflage}, publisher = {WILEY-VCH Verlag GmbH \& Co. KGaA}, address = {Weinheim}, isbn = {9783527693306}, doi = {10.1002/9783527693306}, publisher = {Technische Hochschule Brandenburg}, pages = {XXIV, 769 Seiten}, year = {2017}, subject = {Infrarotthermographie}, language = {en} } @article{VollmerMoellmann2017, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Thomsons fliegender Ring: altbekannt, doch trickreich}, series = {Physik in unserer Zeit}, volume = {48}, journal = {Physik in unserer Zeit}, number = {5}, doi = {10.1002/piuz.201701490}, pages = {251 -- 253}, year = {2017}, language = {de} } @article{VollmerMoellmann2015, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Otto von Guerickes Windb{\"u}chse}, series = {Physik in unserer Zeit}, volume = {46}, journal = {Physik in unserer Zeit}, number = {1}, doi = {10.1002/piuz.201590006}, pages = {46 -- 47}, year = {2015}, language = {de} } @inproceedings{MoellmannRegehlyVollmer2019, author = {M{\"o}llmann, Klaus-Peter and Regehly, Martin and Vollmer, Michael}, title = {Studying the transition from light emitting diodes to semiconductor lasers in applied physics laboratories}, series = {Fifteenth Conference on Education and Training in Optics and Photonics: ETOP 2019 21-24 May 2019}, booktitle = {Fifteenth Conference on Education and Training in Optics and Photonics: ETOP 2019 21-24 May 2019}, address = {Quebec City, Quebec, Canada}, doi = {10.1117/12.2523387}, pages = {1114312-1 -- 1114312-9}, year = {2019}, language = {en} } @article{VollmerMoellmann2018, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Die Qual der Wahl an Weihnachten}, series = {Physik in unserer Zeit}, volume = {49}, journal = {Physik in unserer Zeit}, number = {6}, doi = {10.1002/piuz.201801528}, pages = {306 -- 306}, year = {2018}, language = {de} } @article{VollmerMoellmann2018, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Infrared cameras as accessories to smartphones: facts you need to know}, series = {Physics Education}, volume = {53}, journal = {Physics Education}, number = {6}, doi = {10.1088/1361-6552/aae277}, pages = {065019 -- 065019}, year = {2018}, language = {en} } @article{VollmerMoellmann2018, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Und sie dreht sich doch …}, series = {Physik in unserer Zeit}, volume = {49}, journal = {Physik in unserer Zeit}, number = {5}, doi = {10.1002/piuz.201801525}, pages = {254 -- 254}, year = {2018}, language = {de} } @article{VollmerMoellmann2018, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Slow Speed - Fast Motion. Funktion und Technik von Zeitrafferkameras}, series = {Physik in unserer Zeit}, volume = {49}, journal = {Physik in unserer Zeit}, number = {4}, doi = {10.1002/piuz.201801507}, pages = {190 -- 193}, year = {2018}, language = {de} } @article{VollmerMoellmann2018, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Von Eisw{\"u}rfeln und gefrorenen Seen}, series = {Physik in unserer Zeit}, volume = {49}, journal = {Physik in unserer Zeit}, number = {4}, doi = {10.1002/piuz.201801518}, pages = {201 -- 202}, year = {2018}, language = {de} } @article{VollmerMoellmann2018, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Direct speed of sound measurement within the atmosphere during a national holiday in New Zealand}, series = {Physics Education}, volume = {53}, journal = {Physics Education}, number = {3}, doi = {10.1088/1361-6552/aab6ce}, pages = {033007 -- 033007}, year = {2018}, language = {de} } @article{VollmerMoellmann2018, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Time-lapse videos for physics education: specific examples}, series = {Physics Education}, volume = {53}, journal = {Physics Education}, number = {3}, doi = {10.1088/1361-6552/aab6cf}, pages = {033007 -- 033007}, year = {2018}, language = {en} } @article{VollmerMoellmann2018, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Slow speed—fast motion: time-lapse recordings in physics education}, series = {Physics Education}, volume = {53}, journal = {Physics Education}, number = {3}, doi = {10.1088/1361-6552/aaa954}, pages = {035019 -- 035019}, year = {2018}, language = {en} } @article{VollmerMoellmann2020, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Unsichtbares sichtbar gemacht: Infrarotkameras f{\"u}r Smartphones}, series = {Physik in unserer Zeit}, volume = {51}, journal = {Physik in unserer Zeit}, number = {1}, publisher = {Wiley-VCH}, doi = {https://doi.org/10.1002/piuz.201901551}, pages = {29 -- 35}, year = {2020}, language = {de} } @article{MoellmannRegehlyVollmer2020, author = {M{\"o}llmann, Klaus-Peter and Regehly, Martin and Vollmer, Michael}, title = {Spectroscopy and microscopy analysis of semiconductor lasers in student laboratories}, series = {European Journal of Physics}, volume = {41}, journal = {European Journal of Physics}, number = {2}, publisher = {Institute of Physics Publishing (IOP); European Physical Society}, doi = {10.1088/1361-6404/ab5075}, pages = {025302}, year = {2020}, language = {en} } @article{VollmerMoellmann2020, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Wenn Licht die Biege macht}, series = {Physik in unserer Zeit}, volume = {51}, journal = {Physik in unserer Zeit}, number = {1}, publisher = {Wiley-VCH}, doi = {https://doi.org/10.1002/piuz.202001569}, pages = {46 -- 47}, year = {2020}, language = {de} } @article{VollmerMoellmann2019, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Manche m{\"o}gen's kochend heiß}, series = {Physik in unserer Zeit}, volume = {50}, journal = {Physik in unserer Zeit}, number = {1}, publisher = {Wiley-VCH}, doi = {10.1002/piuz.201901533}, pages = {46 -- 47}, year = {2019}, language = {de} } @article{VollmerMoellmann2019, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Alles kalter Kaffee? Rasante Physik}, series = {Physik in unserer Zeit}, volume = {50}, journal = {Physik in unserer Zeit}, number = {5}, publisher = {Wiley-VCH}, doi = {10.1002/piuz.201901553}, pages = {252 -- 253}, year = {2019}, language = {de} } @article{VollmerMoellmann2019, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Das langsame Verdunsten von Wasser}, series = {Physik in unserer Zeit}, volume = {50}, journal = {Physik in unserer Zeit}, number = {2}, publisher = {Wiley-VCH}, doi = {10.1002/piuz.201901541}, pages = {97 -- 98}, year = {2019}, language = {de} } @article{VollmerMoellmann2020, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Fata Morgana im Wasserbecken}, series = {Physik in unserer Zeit}, volume = {51}, journal = {Physik in unserer Zeit}, number = {2}, publisher = {Wiley-Blackwell}, doi = {10.1002/piuz.202001575}, pages = {98 -- 99}, year = {2020}, language = {de} }