Spatial Light Modulators
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Spatial Light Modulator Technology
This work offers comprehensive coverage of all aspects of spatial light modulators, from the various optical materials used for modulation, through the availability and characteristics of specific devices, to the main applications of SLMs and related systems. The gamut of SLMs is surveyed, including multiple-quantum-well, acousto-optical, magneto-optical, deformable-membrane, ferroelectric-liquid-crystal and smart-pixel modulators.
Comparison of Optically-Addressed Spatial Light Modulators
The performance characteristics of three unique optically-addressed spatial light modulator (SLM) structures were investigated. The measured parameters included maximum resolution, visibility, imaging response time, and write light sensitivity. The modulators investigated include two relatively new technologies: the ferroelectric liquid crystal (FLC) SLM from the University of Colorado-Boulder and the amorphous silicon photoconductive twisted nematic liquid crystal SLM from GEC-Marconi Research, and the Hughes Liquid Crystal Light Valve (LCLV), which is a well established industry benchmark. This report is a compilation of the operating parameters and performance of these three modulators. Investigated parameters are conductive to understanding these modulators as input image transducers in optical correlator architectures.
Phase-Only 128x128 Spatial Light Modulator Based on Laslm Technology
This contract was for the purpose of building 128xl28 pixel spatial light modulator capable of phase-only modulation using TI's unique flexure beam deformable mirror device (DMD) technology. The flexure beam DMD contains mirror elements that move vertically in response to an electrostatic force. The resulting piston-like motion provides broad range analog phase modulation with minimal amplitude modulation. Problems in the CCD addressing prevented the completion and delivery of a fully functioning device. Optical processing, Spatial light modulators, Phase-only filters, Target recognition, Electro-optic devices.