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Proceedings Paper

Visualization of infra-red images by multiwave mixing in resonant media
Author(s): Oleg G. Romanov; Omar A. Ormachea; Alexei L. Tolstik
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Paper Abstract

Among the frequency conversion methods for three-dimensional images characterized by a complex wave front, of particular interest are those based on nonlinear dynamic hologram recording. The use of resonant media including the solutions of complex organic compounds looks promising for realization of the process over wide temporal and spectral ranges. The formation of dynamic holograms in such media is caused by changes in the refractive index and absorption coefficient when the molecules are activated to higher energy states and also by thermal nonlinearity due to the medium heating. In this work, the schemes for visualization of infrared images on multiwave mixing in dye solutions are analyzed both theoretically and experimentally. To improve the frequency conversion efficiency, an intracavity recording method for nonlinear dynamic holograms is used. The pattern of a light beam with the wave front dislocations is demonstrated.

Paper Details

Date Published: 27 July 2007
PDF: 8 pages
Proc. SPIE 6729, ICONO 2007: Coherent and Nonlinear Optical Phenomena, 67290Y (27 July 2007); doi: 10.1117/12.752128
Show Author Affiliations
Oleg G. Romanov, Belarusian State Univ. (Belarus)
Omar A. Ormachea, Belarusian State Univ. (Belarus)
Alexei L. Tolstik, Belarusian State Univ. (Belarus)

Published in SPIE Proceedings Vol. 6729:
ICONO 2007: Coherent and Nonlinear Optical Phenomena
Vladimir N. Belyi; Konstantin N. Drabovich; Christos Flytzanis, Editor(s)

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