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Appl Opt. 1994 May 10;33(14):2804-11. doi: 10.1364/AO.33.002804.

Diffraction efficiency analysis of a parallel-aligned nematic-liquid-crystal spatial light modulator.


An optically addressed parallel-aligned nematic-liquid-crystal spatial light modulator is developed for applications in optical information processing and interferometry. Its performance, including diffraction efficiency, is measured, and a theoretical analysis of diffraction efficiency is performed. A comparison between the experimental results and the theoretical analysis shows good agreement. The diffraction efficiency of near-sinusoidal gratings written on the device is of the order of 30%, which is close to theoretical maximum.

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