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
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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.
|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.|
|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).|
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|Deposited By:||Aucoeur Ngo|
|Deposited On:||18 Jun 2012 14:51|
|Last Modified:||26 Dec 2012 15:20|
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