Abstract
Usually edge enhancement of optical images is produced by introduction of loss into the low spatial frequency components of the image-bearing beam in the Fourier plane of a lens. We report on edge-enhanced phase-conjugate images from a mutually pumped conjugator accomplished by spatial filtering in the Fraunhofer diffraction region of the input beams. High-resolution (128–160 lines/mm) edge-enhanced images are obtained through traditional spatial filtering in the Fourier plane and in the Fraunhofer regime. Amplification of these edge-enhanced images is observed with some loss of high spatial resolution (50 lines/mm).
© 1996 Optical Society of America
Full Article | PDF ArticleMore Like This
Richard J. Anderson, Edward J. Sharp, Gary L. Wood, and Gregory J. Salamo
Appl. Opt. 35(5) 854-859 (1996)
Jan M. Yarrison-Rice, Edward J. Sharp, Gary L. Wood, Gregory J. Salamo, Robert Klank, and Ratnakar R. Neurgaonkar
Appl. Opt. 34(32) 7597-7603 (1995)
Pochi Yeh, Tallis Y. Chang, and M. D. Ewbank
J. Opt. Soc. Am. B 5(8) 1743-1749 (1988)