Paper
1 January 1987 Determining The Phase Function In Two Dimensional Fourier Spectrum
Xu Ke-shu, Xu Xiang-dong
Author Affiliations +
Proceedings Volume 0813, Optics and the Information Age; (1987) https://doi.org/10.1117/12.967202
Event: 14th Congress of the International Commission for Optics, 1987, Quebec, Canada
Abstract
By using a Fourier-optical system with two orthogonal polarization channels we have separated the real part and the imaginary-part and measured the phase function of the Fourier spectrum. For a real asymmetrical object function f(x,y);(Fig. la), its Four-ier spectrum is a complex function of the spatial frequency and the phase function is the goal for us to measure experimentally. First, related to the original function f(x,y) we construct a new function f'(x,y) (Fig. lb) which is symmetrical with respect to the origin of the coordiate axes
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xu Ke-shu and Xu Xiang-dong "Determining The Phase Function In Two Dimensional Fourier Spectrum", Proc. SPIE 0813, Optics and the Information Age, (1 January 1987); https://doi.org/10.1117/12.967202
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KEYWORDS
Spatial filters

Fourier transforms

Image filtering

Optical filters

Transparency

Virtual point source

Far-field diffraction

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