Patent
Optical fourier processing
Devulapalli V. G. L. N. Rao,Francisco J. Aranda,Joby Joseph,Joseph A. Akkara,Masato Nakashima +4 more
TLDR
In this paper, it was shown that the photoinduced anisotropy of photochromic materials such as bacteriorhodopsin, organic fulgides, azo and fluorescent dyes, phycobiliproteins, rhodopsins, and their analogs, is dependent on the intensity of a polarized actinic beam that illuminates the material and the intensity profile of one or more input beams.Abstract:
The invention relates to systems and methods for optical Fourier processing and logic operations based on the discovery that the photoinduced anisotropy of photochromic materials such as bacteriorhodopsin, organic fulgides, azo and fluorescent dyes, phycobiliproteins, rhodopsins, and their analogs, is dependent on the intensity of a polarized actinic beam that illuminates the material and the intensity profile of one or more input beams. This intensity dependence can be used to implement a simple, real-time, self-adaptive optical processing, i.e., spatial filtering, system for Fourier processing of optical input images. This optical processing system can be used to process a wide variety of optical input images, from projected still images to live motion picture images.read more
Citations
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References
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Journal ArticleDOI
Bacteriorhodopsin: a biological material for information processing
TL;DR: Technology which makes use of biological materials has advanced dramatically in the last few decades, with production of specific biochemicals by selected microbial strains, the use of enzymes for stereospecific biosynthesis of materials and gene technological production of biologically important macromolecules.
Journal ArticleDOI
The Bacteriorhodopsin Chromophore Retinal and Derivatives: An Experimental and Theoretical Investigation of the Second-Order Optical Properties
Journal ArticleDOI
Bacteriorhodopsin films as spatial light modulators for nonlinear-optical filtering
TL;DR: The application of dry purple membrane films for nonlinear-optical filtering is described and a model describing the nonlinear transmission of PM films containing the wild-type form of BR or one of its mutated variants, e.g., BR(D96N), and examples of their application in spatial filtering are presented.