Laser-induced thermal dynamic gratings in three-layer structures: active and nonactive substrates

E. V. Ivakin; Ludmila Makarova; Alexander S. Rubanov; Valery N. Filippov

doi:10.1117/12.330453

6 November 1998 Laser-induced thermal dynamic gratings in three-layer structures: active and nonactive substrates

E. V. Ivakin, Ludmila Makarova, Alexander S. Rubanov, Valery N. Filippov

Proceedings Volume 3580, Photoconversion: Science and Technologies; (1998) https://doi.org/10.1117/12.330453
Event: Photoconversion: Science and Technologies, 1997, Warsaw, Poland

Abstract

Time evolution of the intensity of light diffracted by phase grating which is induced by thermal dynamic grating (TDG) in liquid film between glass or quartz substrates is studied theoretically and experimentally. Due to heat exchange at the film boundaries the thermal gratings are also formed in substrates. The diffraction intensity of substrates can be less or comparable to that of film (non-active and active substrates, respectively). The experimental results are in a good agreement with the theoretical calculations carried out for the case when the film thickness is less the TDG period. It is shown the essential influence of the film thickness and the active-substrates contribution on the evolution of the intensity of diffracted light.

Citation Download Citation

E. V. Ivakin, Ludmila Makarova, Alexander S. Rubanov, and Valery N. Filippov "Laser-induced thermal dynamic gratings in three-layer structures: active and nonactive substrates", Proc. SPIE 3580, Photoconversion: Science and Technologies, (6 November 1998); https://doi.org/10.1117/12.330453

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