HIGH-SPEED ANALOG ACHROMATIC INTENSITY MODULATOR

被引：6
|
作者：
STOCKLEY, JE
SHARP, GD
DOROSKI, D
JOHNSON, KM
机构：
[1] Department of Electrical and Computer Engineering, University of Colorado at Boulder, Boulder, CO
来源：
OPTICS LETTERS | 1994年 / 19卷 / 10期
关键词：
Achromatic transmission - Broadband analog intensity modulator - Chromatic compensation - Fresnel losses - Mueller calculus - Retardance - Smectic liquid crystal half wave retarders;
D O I：
10.1364/OL.19.000758
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report what is to our knowledge the first implementation of a broadband analog intensity modulator composed of two chiral smectic liquid-crystal half-wave retarders. A reflection-mode intensity modulator employing a single active device has also demonstrated achromatic transmission. A quantitative theory for chromatic compensation is presented. By optimuim selection of liquid-crystal retardance and orientation, intensity transmission is uniform throughout the visible. The chiral smectic liquid-crystal devices used in the implementation are capable of switching in less than 20 mus.
引用
收藏
页码：758 / 760
页数：3
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