Photothermal Study of Anisotropic Media

  • B. Perrin
  • X. Quelin
  • B. Mangeot
  • G. Louis
  • P. Peretti
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 112)

Abstract

Photothermal techniques are based on the illumination of the sample under study by a modulated light beam (pump beam). In absorbing media, light is converted into heat and induces thermal waves within the sample. This heat flow produces a refractive index gradient in the adjacent air medium, close to the sample surface. In the probe beam deflection technique [1], a second laser beam is directed through the heated region and is deflected by the mirage effect. The analysis of this deflection gives the temperature distribution in the sample and information about its thermal properties. The 3d photothermal deflection has been extensively reported in the literature for isotropic media [2] but only a few results are related to anisotropic ones [3].

Keywords

Anisotropy Argon Rene Polydiacetylene 

References

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    X.Quélin, C.Lapersonne-Meyer, J.Berrehar, G.Louis, P.Peretti, in Photo-acoustic and Phothermal Phenomena III, Springer Verlag (in press)Google Scholar
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    sample provided by C.Lapersonne and J.Berrehar, GPS, Paris 7 UniversityGoogle Scholar
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    A.Hadj-Sahraoui, G.Louis, B.Mangeot, P.Peretti, J.Billard, Liq. Cryst. 5, 579 (1989)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • B. Perrin
    • 1
  • X. Quelin
    • 1
  • B. Mangeot
    • 2
  • G. Louis
    • 1
  • P. Peretti
    • 2
  1. 1.Département de Recherches Physiques, CNRS UA71Université Pierre et Marie CurieParis Cédex 05France
  2. 2.Laboratoire de Physique des Phases CondenséesUniversité René DescartesParis Cédex 06France

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