@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{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{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{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} } @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} } @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{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} } @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{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} } @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} } @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} } @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} } @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} } @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} } @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{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{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{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{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{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{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} } @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{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{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{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 = {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{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{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{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{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{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} } @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} } @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{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} } @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} } @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} } @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{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} } @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{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 = {Vapour pressure and adiabatic cooling from champagne: slow motion visualization of gas thermodynamics}, series = {In: Physics Education 47 (2012) 5, 608-615}, journal = {In: Physics Education 47 (2012) 5, 608-615}, pages = {608 -- 615}, year = {2012}, language = {en} } @article{VollmerMoellmann2012, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Faster than g, revisited with high-speed imaging}, series = {In: European Journal of Physics 33 (2012) 5, 1277-1288}, journal = {In: European Journal of Physics 33 (2012) 5, 1277-1288}, pages = {1277 -- 1288}, year = {2012}, language = {en} } @article{VollmerMoellmann2012, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Low cost hands-on experiments for Physics teaching}, series = {In: Latin-American Journal of Physics Education 6 (2012) Suppl. I, pp. 3-9}, journal = {In: Latin-American Journal of Physics Education 6 (2012) Suppl. I, pp. 3-9}, issn = {1870-9095}, pages = {3 -- 9}, year = {2012}, language = {en} } @article{VollmerMoellmann2012, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Oscillating droplets and incompressible liquids: slow motion visualization of experiments with fluids}, series = {In: Physics Education 47 (2012), 664-679}, journal = {In: Physics Education 47 (2012), 664-679}, pages = {664 -- 679}, year = {2012}, language = {en} } @article{VollmerMoellmann2011, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Ring falling into a chain: no magic - just physics}, series = {In: The Physics Teacher 49 (2011), 335-337}, journal = {In: The Physics Teacher 49 (2011), 335-337}, pages = {335 -- 337}, year = {2011}, language = {en} } @article{VollmerMoellmann2012, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Caustic effects due to sun light reflections from skyscrapers: simulations and experiments}, series = {In : European Journal of Physics 33 (2012) 5, 1429-1455}, journal = {In : European Journal of Physics 33 (2012) 5, 1429-1455}, pages = {1429 -- 1455}, year = {2012}, language = {en} } @article{VollmerMoellmann2011, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Exploding balloons, deformed balls, strange reflections, and breaking rods: slow motion analysis of selected hands-on experiments}, series = {In: Physics Education 46 (2011) 4, p.472-485}, journal = {In: Physics Education 46 (2011) 4, p.472-485}, pages = {472 -- 485}, year = {2011}, language = {en} } @article{VollmerMoellmann2011, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {High speed—slow motion: technology of modern high speed cameras}, series = {In: Physics Education 46 (2011) 2, 191-202}, journal = {In: Physics Education 46 (2011) 2, 191-202}, doi = {10.1002/piuz.201101270}, pages = {191 -- 202}, year = {2011}, language = {en} } @article{FrankeWiekhorstNordmeierVollmeretal.2011, author = {Franke-Wiekhorst, A. and Nordmeier, V. and Vollmer, Michael and Welzel-Breuer, M. and Wodzinski, R.}, title = {Fobinet: an internet supported platform for nationwide coordination, promotion and funding of physics teacher training activities in Germany}, series = {In: Physics Education 46 (2011), 240-243}, journal = {In: Physics Education 46 (2011), 240-243}, pages = {240 -- 243}, year = {2011}, language = {en} } @article{VollmerNordmeier2009, author = {Vollmer, Michael and Nordmeier, V.}, title = {A long tradition of in-service training for physics teachers by the German Physical Society}, series = {In: International newsletter on physics education / International Commission on Physics Education, International Union of Pure and Applied Physics 58 (2009), p. 3-4}, journal = {In: International newsletter on physics education / International Commission on Physics Education, International Union of Pure and Applied Physics 58 (2009), p. 3-4}, pages = {3 -- 4}, year = {2009}, language = {en} } @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{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{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} }