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Proceedings Paper

Diffractive optical devices for spatial image separation
Author(s): Dennis W. Prather; Hal L. Levitt; Edward M. Alexander; Christie R. Marrian; Anthony E. Spezio
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Paper Abstract

Efficient diffractive optical element (DOE) spatial image separator devices that segment an image and redirect corresponding regions to independent photodetectors are presented. These devices constitute a compact single-element alternative to prism arrays or reflective wedge arrays. DOE's with micro features are fabricated suing conventional microlithography techniques amenable to low-cost production. The system application described is a high-speed RF phase measurement processor for the NRL channelized direction finding receiver. This paper describes the design, fabrication, analysis, and empirical measurements of a 3 segment and 15 segment diffractive spatial image separator.

Paper Details

Date Published: 27 March 1997
PDF: 9 pages
Proc. SPIE 3073, Optical Pattern Recognition VIII, (27 March 1997); doi: 10.1117/12.270391
Show Author Affiliations
Dennis W. Prather, Naval Research Lab. (United States)
Hal L. Levitt, Naval Research Lab. (United States)
Edward M. Alexander, Naval Research Lab. (United States)
Christie R. Marrian, Naval Research Lab. (United States)
Anthony E. Spezio, Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 3073:
Optical Pattern Recognition VIII
David P. Casasent; Tien-Hsin Chao, Editor(s)

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