Article ID Journal Published Year Pages File Type
735526 Optics and Lasers in Engineering 2006 8 Pages PDF
Abstract

We report on a complete contrast reversal and contrast enhancement of a holographically recorded phase spot array/grid achieved by phase filtering, using an intensity-dependent refractive index medium, zinc tetraphenyl porphyrin as phase filter placed in the Fourier plane of the 4-f imaging system. We show that the contrast enhancement is robust and insensitive to local errors in the phase array and can be used to repair a damaged portion of the input phase array.

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Physical Sciences and Engineering Engineering Electrical and Electronic Engineering
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