REAL-TIME JOINT TRANSFORM CORRELATION WITH PHOTOANISOTROPIC DYE-POLYMER FILMS

被引：12

作者：

HUANG, TH

WAGNER, KH

机构：

[1] Center for Optoelectronic Computing Systems, Department of Electrical and Computer Engineering, University of Colorado, Boulder, CO

来源：

APPLIED OPTICS | 1994年 / 33卷 / 32期

关键词：

REAL-TIME CORRELATION; PHOTOANISOTROPIC HOLOGRAPHY; DYE-POLYMER;

D O I：

10.1364/AO.33.007634

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The results of joint transform correlation with photoanisotropic organic materials are presented. The materials' dynamic holographic recording capability and high resolution permit the operation of such a correlator in real time. Both theoretical and experimental results show that the photoanisotropic properties cause a dependence of the correlation output on the state of the polarization of the readout beam and can be used to produce an output polarization orthogonal to the input, which permits polarization filtering to be used, greatly increasing the signal-to-noise ratio. The effect of the saturation of the nonlinearity on correlation performance is investigated and is shown to be able to improve correlator recognition and discrimination. The correlation results of binary images and of a high-resolution synthetic-aperture radar image are presented, demonstrating excellent optical quality, nonlinear edge enhancement, and real-time operation.

引用

页码：7634 / 7645

页数：12

共 22 条

[1] FOURIER-PLANE FILTERING BY A THICK GRATING - A SPACE BANDWIDTH ANALYSIS [J].

ATHALE, RA ;

RAJ, K .

OPTICS LETTERS, 1992, 17 (12) :880-882

[2] MODULATION TRANSFER-FUNCTION MEASUREMENTS FOR THIN-LAYERS OF AZO DYES IN PVA MATRIX USED AS AN OPTICAL-RECORDING MATERIAL [J].

COUTURE, JJA ;

LESSARD, RA .

APPLIED OPTICS, 1988, 27 (16) :3368-3374

[3] TIME-DEPENDENT PROPAGATION OF HIGH-ENERGY LASER-BEAMS THROUGH ATMOSPHERE [J].

FLECK, JA ;

MORRIS, JR ;

FEIT, MD .

APPLIED PHYSICS, 1976, 10 (02) :129-160

[4]

GU CXG, 1990, THESIS CALTECH PASAD

[5]

HUANG T, UNPUB IEEE J QUANTUM

[6]

HUANG T, 1993, 1993 OSA WASH, V6, P214

[7]

HUANG T, 1992, P SOC PHOTOOPT INSTU, V1774, P160

[8] PHOTOANISOTROPIC INCOHERENT-TO-COHERENT OPTICAL CONVERSION [J].

HUANG, TH ;

WAGNER, KH .

APPLIED OPTICS, 1993, 32 (11) :1888-1900

[9] HOLOGRAPHIC DIFFRACTION IN PHOTOANISOTROPIC ORGANIC MATERIALS [J].

HUANG, TZ ;

WAGNER, KH .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1993, 10 (02) :306-315

[10] NONLINEAR JOINT POWER SPECTRUM BASED OPTICAL CORRELATION [J].

JAVIDI, B .

APPLIED OPTICS, 1989, 28 (12) :2358-2367

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