Phase-encoded computer-generated hologram implemented with liquid crystal television

Ren-Chung Liu; Ken Yuh Hsu

doi:10.1117/12.458874

20 November 2002 Phase-encoded computer-generated hologram implemented with liquid crystal television panel

Ren-Chung Liu, Ken Yuh Hsu

Proceedings Volume 4803, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VIII; (2002) https://doi.org/10.1117/12.458874
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

The advantages of phase-encoded computer-generated-hologram (CGH) are high diffraction efficiency and the ability to reconstruct images on-axis. These advantages are very fundamental and important for many applications. The implementation of phase-encoded CGH by using electrical-addressable liquid crystal television (LCTV) with pure phase-modulation provides the ability for programmable optical interconnections, optical neural systems, optical switches etc. In this paper we adopt the iterative Fourier transform algorithm to design a pure phase CGH. We also report the modulation characteristics of LCTV and its application for displaying the phase-encoded CGH. Criterions for evaluating the quality of output images are proposed.

Citation Download Citation

Ren-Chung Liu and Ken Yuh Hsu "Phase-encoded computer-generated hologram implemented with liquid crystal television panel", Proc. SPIE 4803, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VIII, (20 November 2002); https://doi.org/10.1117/12.458874

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KEYWORDS

Computer generated holography

Phase shift keying

Liquid crystals

Modulation

Fourier transforms

Spatial light modulators

Diffraction

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