Frequency conversion of coherent images by thin and volume dynamic holograms

Omar Ormachea; Oleg G. Romanov; Alexei L. Tolstik; José Luis Arce Diego; David Pereda Cubian; Félix Fanjul Vélez

doi:10.1117/12.675738

18 April 2006 Frequency conversion of coherent images by thin and volume dynamic holograms

Omar Ormachea, Oleg G. Romanov, Alexei L. Tolstik, José Luis Arce Diego, David Pereda Cubian, Félix Fanjul Vélez

Author Affiliations +

Proceedings Volume 6180, Photonics, Devices, and Systems III; 61801J (2006) https://doi.org/10.1117/12.675738
Event: Photonics, Devices, and Systems III, 2005, Prague, Czech Republic

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.

Citation Download Citation

Omar Ormachea, Oleg G. Romanov, Alexei L. Tolstik, José Luis Arce Diego, David Pereda Cubian, and Félix Fanjul Vélez "Frequency conversion of coherent images by thin and volume dynamic holograms", Proc. SPIE 6180, Photonics, Devices, and Systems III, 61801J (18 April 2006); https://doi.org/10.1117/12.675738

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