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

被引：9
|
作者：
Sayyah, K [1 ]
Au, A [1 ]
Efron, U [1 ]
Yamazaki, T [1 ]
机构：
[1] VICTOR CORP JAPAN,CENT RES & DEV CTR,YOKOSUKA,KANAGAWA 239,JAPAN
来源：
APPLIED OPTICS | 1996年 / 35卷 / 29期
关键词：
spatial light modulators; spatial resolution; photosensitivity; Schottky diode photosubstrate; field fringing; liquid-crystal switching voltage;
D O I：
10.1364/AO.35.005761
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report an optically addressed, liquid-crystal-based spatial light modulator demonstrating a resolution of 25 line pairs/mm at 50% modulation transfer function and more than 40-line-pair/mm Limiting resolution by using a 25-mu m-thick silicon Schottky diode-array photosubstrate. This resolution is obtained concurrent with a high photosensitivity of approximately 20 mu W/cm(2) 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. (C) 1996 Optical Society of America
引用
收藏
页码：5761 / 5764
页数：4
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