High-resolution liquid-crystalbased spatial light modulator with a thin crystalline silicon photosubstrate structure

Keyvan Sayyah, Anson Au, Uzi Efron, Tetsuhiro Yamazaki

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

We report an optically addressed, liquid-crystal-based spatial light modulator demonstrating a resolution of 25 line pairsymm at 50% modulation transfer function and more than 40-line-pairymm limiting resolution by using a 25-μm-thick silicon Schottky diode-array photosubstrate. This resolution is obtained concurrent with a high photosensitivity of approximately 20 μW/cm2 and a contrast ratio of over 200:1. The high resolution and photosensitivity obtained with the thin photosubstrate are explained by a fringing field and an equivalent-circuit model, respectively.

Original languageEnglish
Pages (from-to)5761-5764
Number of pages4
JournalApplied Optics
Volume35
Issue number29
DOIs
StatePublished - 10 Oct 1996
Externally publishedYes

Keywords

  • Field fringing
  • Liquid-crystal switching voltage
  • Photosensitivity
  • Schottky diode photosubstrate
  • Spatial light modulators
  • Spatial resolution

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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