Optical amplification in the photopolymer material

Valery I. Dossadin; Yuri I. Kiryushin; Eugene F. Pen; Alexander M. Sinyukov; Vladimir V. Shelkovnikov

doi:10.1117/12.147822

12 July 1993 Optical amplification in the photopolymer material

Valery I. Dossadin, Yuri I. Kiryushin, Eugene F. Pen, Alexander M. Sinyukov, Vladimir V. Shelkovnikov

Proceedings Volume 1806, Optical Computing; (1993) https://doi.org/10.1117/12.147822
Event: Topical Meeting on Optical Computing, 1992, Minsk, Belarus

Abstract

Hologram amplification was found for the first time in the crystals of lithium niobate LiNbO₃. This phenomenon has been observed in several kinds of recording media. The detailed phenomenological description of that effect is given. The photopolymer materials (PPM) are organic light-sensitive media. The light-induced radical polymerization in these materials causes refractive index increases. Increased diffraction efficiency of holograms in PPM due to one-beam postexposure was observed for the first time in the first half of the 1970s. The hologram amplification in the liquid photopolymer FPK-488 composition has been recently investigated in details. The postpolymerization amplification (PPA) in thermal reactions has been noted. The results of experiments for the coherent dynamic self-amplification (DSA) in that material are presented. The amplification mechanism has also been analyzed in these articles. The Du Pont de Nemours photopolymer materials allow thermal amplification of reflection holograms. Samples are heated to the temperature of 80 degree(s) - 125 degree(s)C after the recording and during 180 min. treatment the refractive index increases from 0.007 to 0.015 - 0.022.

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Valery I. Dossadin, Yuri I. Kiryushin, Eugene F. Pen, Alexander M. Sinyukov, and Vladimir V. Shelkovnikov "Optical amplification in the photopolymer material", Proc. SPIE 1806, Optical Computing, (12 July 1993); https://doi.org/10.1117/12.147822

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