Microhologram recording in amorphous semiconductor films

Andris O. Ozols; Girts Ivanovs; Maris Laudobelis

doi:10.1117/12.266854

6 February 1997 Microhologram recording in amorphous semiconductor films

Andris O. Ozols, Girts Ivanovs, Maris Laudobelis

Proceedings Volume 2968, Optical Organic and Semiconductor Inorganic Materials; (1997) https://doi.org/10.1117/12.266854
Event: International Conference on Advanced Optical Materials and Devices, 1996, Riga, Latvia

Abstract

The effect of holographic grating (HG) size on their diffraction efficiency (DE) at different spatial frequencies is experimentally studied in amorphous AS-S-Se films. The HG size was changed by focusing the recording beams. It is found that reduction of the size from 1100 micrometer to 150 micrometer increases the maximal DE from 0.9% to 1.8%. Further reduction down to 20 micrometer decreases the maximal DE down to 0.08%. DE at lower spatial frequencies is attenuated more than at higher ones. The observed effects are explained by the nonuniformity of thin HG recorded by Gaussian beams as well as by the curvature of the focused wavefronts and peculiarities of the recording mechanism in As-S-Se films. It is concluded that minimization of hologram size in AS-S-Se films is feasible only down to 150 micrometers.

Citation Download Citation

Andris O. Ozols, Girts Ivanovs, and Maris Laudobelis "Microhologram recording in amorphous semiconductor films", Proc. SPIE 2968, Optical Organic and Semiconductor Inorganic Materials, (6 February 1997); https://doi.org/10.1117/12.266854

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