OA LC SLM with high-net optical efficiency for holographic correction of distortions

Vladimir A. Berenberg; Leonid A. Beresnev; Aleksander N. Chaika; Nikolai A. Feoktistov; Mark T. Gruneisen; Mikhail V. Isaev; Elena A. Konshina; Arkady P. Onokhov

doi:10.1117/12.407509

22 November 2000 OA LC SLM with high-net optical efficiency for holographic correction of distortions

Vladimir A. Berenberg, Leonid A. Beresnev, Aleksander N. Chaika, Nikolai A. Feoktistov, Mark T. Gruneisen, Mikhail V. Isaev, Elena A. Konshina, Arkady P. Onokhov

Author Affiliations +

Proceedings Volume 4124, High-Resolution Wavefront Control: Methods, Devices, and Applications II; (2000) https://doi.org/10.1117/12.407509
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

The reflective type optically addressed spatial light modulators (OASLMs) with an amorphous hydrogenated carbon (a- C:H) light-blocking layer (LBL) sandwiched between an intrinsic hydrogenated silicon carbide (a-Si:C:H) photoconductor and broad-band and narrow-band dielectric mirrors have been developed. FLC was used as a light modulating medium. The DHF effect in an FLC with tilt angle (Theta) equals 39 degrees and SS (Clark-Lagerwall) effect with angle 22,5 degree(s) were employed. The study showed that a flexible design of the OASLMs are possible. As a result of optimal design of the reflective type OASLMs with the dielectric mirrors of two types, the following performance characteristics have been obtained. Diffraction efficiency (DE) was about 30%, net diffraction efficiency (NE) was about 20% (spatial frequency equal 30 lp/mm and frame refreshment rate equal 200 Hz). This net diffraction efficiency practically does not depend on the direction of the reading- out light polarization for the OASLMs operating on the DHF mode.

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Vladimir A. Berenberg, Leonid A. Beresnev, Aleksander N. Chaika, Nikolai A. Feoktistov, Mark T. Gruneisen, Mikhail V. Isaev, Elena A. Konshina, and Arkady P. Onokhov "OA LC SLM with high-net optical efficiency for holographic correction of distortions", Proc. SPIE 4124, High-Resolution Wavefront Control: Methods, Devices, and Applications II, (22 November 2000); https://doi.org/10.1117/12.407509

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