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Proceedings Paper

Frequency conversion of coherent images by thin and volume dynamic holograms
Author(s): Omar Ormachea; Oleg G. Romanov; Alexei L. Tolstik; José Luis Arce Diego; David Pereda Cubian; Félix Fanjul Vélez
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Paper Abstract

One of the main advances of dynamical holography is the possibility to operate with coherent images in real-time experimental situation. Non-degenerate four-wave mixing has some advantages among different holographic methods because it gives the possibility to perform visualization of infra-red images or to convert visible radiation into ultra-violet region. In the work we study different schemes of frequency conversion of coherent images by thin and volume dynamic holograms nonlinearly formed in multilevel resonance media in conditions of non-degenerate four-wave mixing. The theoretical model of dynamic gratings formation in dye solutions based on coupled-wave equations has been developed. Experimental realization of frequency conversion of coherent images from infra-red to the visible and between different wavelengths of visible region has been performed. It has been shown that the criterion of hologram thickness is dependent on the optical density of medium and intensity of input radiation. The diffraction efficiency of dynamic gratings has been measured in conditions of optical bleaching and in the mode of strong absorption, enabling recording of thin gratings.

Paper Details

Date Published: 18 April 2006
PDF: 6 pages
Proc. SPIE 6180, Photonics, Devices, and Systems III, 61801J (18 April 2006); doi: 10.1117/12.675738
Show Author Affiliations
Omar Ormachea, Belarusian State Univ. (Belarus)
Oleg G. Romanov, Belarusian State Univ. (Belarus)
Alexei L. Tolstik, Belarusian State Univ. (Belarus)
José Luis Arce Diego, Univ. of Cantabria (Spain)
David Pereda Cubian, Univ. of Cantabria (Spain)
Texas A and M Univ. (United States)
Félix Fanjul Vélez, Univ. of Cantabria (Spain)

Published in SPIE Proceedings Vol. 6180:
Photonics, Devices, and Systems III
Pavel Tománek; Miroslav Hrabovský; Miroslav Miler; Dagmar Senderákova, Editor(s)

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