Soft blocking of the dc term in Fourier optical systems

被引：23

作者：

Jutamulia, S

Gregory, DA

机构：

[1] In Harmony Technol Corp, Petaluma, CA 94952 USA

[2] Univ Alabama, Dept Phys, Huntsville, AL 35899 USA

[3] Quantex Corp, Rockville, MD 20850 USA

来源：

OPTICAL ENGINEERING | 1998年 / 37卷 / 01期

关键词：

recognition techniques; dc term; Fourier optical systems; electron trapping;

D O I：

10.1117/1.601854

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A technique utilizing an electron-trapping (ET) film to block the extended de term in a Fourier optical system film is proposed and demonstrated. Since the blocking process is actually based on the subtracting property of the ET film, it is a soft blocking, which differs from, and is better than, simple hard blocking with a stop. (C) 1998 Society of Photo-Optical Instrumentation Engineers. [S0091-3286(98)01401-9].

引用

收藏

页码：49 / 51

页数：3

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