Document Type

Conference Proceeding

Publisher

IEEE

Faculty

Computing, Health and Science

School

Electron Science Research Institute

RAS ID

5365

Comments

This article was originally published as: Eng, S. H., Cai, D., Wang, Z., Alameh, K., & Jiang, W. (2007). Optimization of Liquid-Crystal Spatial Light Modulator for Precise Phase Generation. Proceedings of Conference on Optoelectronic and Microelectronic Materials and Devices. (pp. 105-108). Perth, Australia. IEEE. Original article available here

© 2007 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Abstract

Spatial light modulators (SLMs) are recently emerging as wavefront generation or reconstruction devices. In this paper, we use a liquid-crystal SLM (LC-SLM) as a wavefront generation device through the modulation of the spatial phase distribution of an incident light beam. We characterize the phase modulation performance of the LC-SLM, and identified a polarization-configuration to minimize its amplitude modulation effects in order to maximize the contrast of reconstructed phase holograms. We also investigated the feasibility of determining the optical surface uniformity of the LC-SLM through computations of the interference fringes, and identified the disadvantages of this method. This new approach may be used to determine the optical surface quality of other optical devices.

DOI

10.1109/COMMAD.2006.4429891

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Link to publisher version (DOI)

10.1109/COMMAD.2006.4429891