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Optical Engineering

Soft blocking of the dc term in Fourier optical systems
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Paper Abstract

A technique utilizing an electron-trapping (ET) film to block the extended dc 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.

Paper Details

Date Published: 1 January 1998
PDF: 3 pages
Opt. Eng. 37(1) doi: 10.1117/1.601854
Published in: Optical Engineering Volume 37, Issue 1
Show Author Affiliations
Suganda Jutamulia, In-Harmony Technology Corp. (United States)
Don A. Gregory, Univ. of Alabama in Huntsville (United States)

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