1 January 1998 Soft blocking of the dc term in Fourier optical systems
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Optical Engineering, 37(1), (1998). doi:10.1117/1.601854
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.
Suganda Jutamulia, Don A. Gregory, "Soft blocking of the dc term in Fourier optical systems," Optical Engineering 37(1), (1 January 1998). https://doi.org/10.1117/1.601854
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