Interference filters as nonlinear decision-making elements for three-spot pattern recognition and associative memories

L. Wang; V. Esch; R. Feinleib; L. Zhang; R. Jin; H. M. Chou; Robert W. Sprague; H. Angus Macleod; G. Khitrova; Hyatt M. Gibbs; Kelvin Wagner; Demetri Psaltis

doi:10.1364/AO.27.001715

Interference filters as nonlinear decision-making elements for three-spot pattern recognition and associative memories

L. Wang, V. Esch, R. Feinleib, L. Zhang, R. Jin, H. M. Chou, Robert W. Sprague, H. Angus Macleod, G. Khitrova, Hyatt M. Gibbs, Kelvin Wagner, Demetri Psaltis

Optical Sciences, College of

Research output: Contribution to journal › Letter › peer-review

14 Scopus citations

Abstract

Simple patterns consisting of three spots (V and T) have been recognized by dividing, shifting, and recombining beams onto bistable ZnS interference filters. This experiment demonstrates AND-gate operation, cascading, and a moderate amount of parallelism, but a laser power of several watts was required and the response times were several milliseconds. An associative memory for fingerprint identification has been constructed using a VanderLugt correlator and an interference filter as a reflective thresholding device.

Original language	English (US)
Pages (from-to)	1715-1720
Number of pages	6
Journal	Applied optics
Volume	27
Issue number	9
DOIs	https://doi.org/10.1364/AO.27.001715
State	Published - May 1988

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

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title = "Interference filters as nonlinear decision-making elements for three-spot pattern recognition and associative memories",

abstract = "Simple patterns consisting of three spots (V and T) have been recognized by dividing, shifting, and recombining beams onto bistable ZnS interference filters. This experiment demonstrates AND-gate operation, cascading, and a moderate amount of parallelism, but a laser power of several watts was required and the response times were several milliseconds. An associative memory for fingerprint identification has been constructed using a VanderLugt correlator and an interference filter as a reflective thresholding device.",

author = "L. Wang and V. Esch and R. Feinleib and L. Zhang and R. Jin and Chou, {H. M.} and Sprague, {Robert W.} and Macleod, {H. Angus} and G. Khitrova and Gibbs, {Hyatt M.} and Kelvin Wagner and Demetri Psaltis",

year = "1988",

month = may,

doi = "10.1364/AO.27.001715",

language = "English (US)",

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journal = "Applied optics",

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T1 - Interference filters as nonlinear decision-making elements for three-spot pattern recognition and associative memories

AU - Wang, L.

AU - Esch, V.

AU - Feinleib, R.

AU - Zhang, L.

AU - Jin, R.

AU - Chou, H. M.

AU - Sprague, Robert W.

AU - Macleod, H. Angus

AU - Khitrova, G.

AU - Gibbs, Hyatt M.

AU - Wagner, Kelvin

AU - Psaltis, Demetri

PY - 1988/5

Y1 - 1988/5

N2 - Simple patterns consisting of three spots (V and T) have been recognized by dividing, shifting, and recombining beams onto bistable ZnS interference filters. This experiment demonstrates AND-gate operation, cascading, and a moderate amount of parallelism, but a laser power of several watts was required and the response times were several milliseconds. An associative memory for fingerprint identification has been constructed using a VanderLugt correlator and an interference filter as a reflective thresholding device.

AB - Simple patterns consisting of three spots (V and T) have been recognized by dividing, shifting, and recombining beams onto bistable ZnS interference filters. This experiment demonstrates AND-gate operation, cascading, and a moderate amount of parallelism, but a laser power of several watts was required and the response times were several milliseconds. An associative memory for fingerprint identification has been constructed using a VanderLugt correlator and an interference filter as a reflective thresholding device.

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U2 - 10.1364/AO.27.001715

DO - 10.1364/AO.27.001715

M3 - Letter

AN - SCOPUS:84975609391

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VL - 27

SP - 1715

EP - 1720

JO - Applied optics

JF - Applied optics

IS - 9

ER -

Interference filters as nonlinear decision-making elements for three-spot pattern recognition and associative memories

Abstract

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