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Optically addressed high-resolution liquid crystal spatial light modulator with a diffraction efficiency above 50%

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Abstract

An optically addressed liquid crystal spatial light modulator (SLM) with a photosensitive amorphous hydrogenated silicon carbide (a-SiC:H) layer has been studied using holographic techniques. The maximum diffraction efficiency (DE) of the device amounted to ηmax = 50.5%. A decrease in the DE to a level of 0.5ηmax was observed at a spatial frequency of 75 mm−1. The high resolution and DE of the proposed SLM are due to features in the formation of an asymmetric grating line profile in the given structure.

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Authors and Affiliations

  1. St. Petersburg State University of Information Technology, Mechanics, and Optics, St. Petersburg, Russia

    A. N. Chaika, L. P. Amosova & E. A. Konshina

Authors
  1. A. N. Chaika
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  2. L. P. Amosova
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  3. E. A. Konshina
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Correspondence to A. N. Chaika.

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Original Russian Text © A.N. Chaika, L.P. Amosova, E.A. Konshina, 2009, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2009, Vol. 35, No. 9, pp. 25–30.

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Chaika, A.N., Amosova, L.P. & Konshina, E.A. Optically addressed high-resolution liquid crystal spatial light modulator with a diffraction efficiency above 50%. Tech. Phys. Lett. 35, 401–403 (2009). https://doi.org/10.1134/S1063785009050046

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  • DOI: https://doi.org/10.1134/S1063785009050046

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