High-contrast spatial light modulator by use of the electroabsorption and the electro-optic effects in a GaAs single crystal

被引：16

作者：

Bitou, Y ^{[1
]}

Minemoto, T ^{[1
]}

机构：

[1] Kobe Univ, Grad Sch Sci & Technol, Nada Ku, Kobe, Hyogo 657, Japan

来源：

APPLIED OPTICS | 1998年 / 37卷 / 20期

关键词：

D O I：

10.1364/AO.37.004347

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new spatial light modulator that uses the electroabsorption and the electro-optic effects in a GaAs single crystal is proposed. The device has the same structure as a Pockels readout optical modulator and can be operated at a frame rate higher than 500 Hz. When the electroabsorption and the electro-optic effects are combined, the dynamic range (contrast ratio) becomes larger than that which results when either effect is used singly. It was experimentally confirmed that the modulator has a high contrast ratio (greater than 2000:1), high sensitivity, and consequently large gamma characteristics. (C) 1998 Optical Society of America.

引用

页码：4347 / 4356

页数：10

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