CaltechAUTHORS
  A Caltech Library Service

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

Wang, L. and Esch, V. and Feinleib, R. and Zhang, L. and Jin, R. and Chou, H. M. and Sprague, Robert W. and Macleod, H. Angus and Khitrova, G. and Gibbs, Hyatt M. and Wagner, Kelvin and Psaltis, Demetri (1988) Interference filters as nonlinear decision-making elements for three-spot pattern recognition and associative memories. Applied Optics, 27 (9). pp. 1715-1720. ISSN 0003-6935. http://resolver.caltech.edu/CaltechAUTHORS:20120615-115025571

[img]
Preview
PDF - Published Version
See Usage Policy.

1690Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20120615-115025571

Abstract

Simple patterns consisting of three spots (V and Γ) 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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1364/AO.27.001715DOIUNSPECIFIED
http://www.opticsinfobase.org/ao/abstract.cfm?uri=ao-27-9-1715PublisherUNSPECIFIED
Additional Information:© 1988 Optical Society of America. Received 28 January 1988. Support from AFOSR, ARO, NSF, RADC/DARPA, SDIO, and the Optical Circuitry Cooperative is gratefully acknowledged. Special thanks to J. McCann for the phase gratings.
Funders:
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)UNSPECIFIED
Army Research Office (ARO)UNSPECIFIED
NSFUNSPECIFIED
Rome Air Development Center (RADC)UNSPECIFIED
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Strategic Defense Initiative Organization (SDIO)UNSPECIFIED
Optical Circuitry CooperativeUNSPECIFIED
Record Number:CaltechAUTHORS:20120615-115025571
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120615-115025571
Official Citation:L. Wang, V. Esch, R. Feinleib, L. Zhang, R. Jin, H. Chou, R. Sprague, H. Macleod, G. Khitrova, H. Gibbs, K. Wagner, and D. Psaltis, "Interference filters as nonlinear decision-making elements for three-spot pattern recognition and associative memories," Appl. Opt. 27, 1715-1720 (1988).
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:31916
Collection:CaltechAUTHORS
Deposited By: Aucoeur Ngo
Deposited On:18 Jun 2012 14:51
Last Modified:26 Dec 2012 15:20

Repository Staff Only: item control page