Diffractive optical devices for spatial image separation

Dennis W. Prather; Hal L. Levitt; Edward M. Alexander; Christie R. Marrian; Anthony E. Spezio

doi:10.1117/12.270391

27 March 1997 Diffractive optical devices for spatial image separation

Dennis W. Prather, Hal L. Levitt, Edward M. Alexander, Christie R. Marrian, Anthony E. Spezio

Proceedings Volume 3073, Optical Pattern Recognition VIII; (1997) https://doi.org/10.1117/12.270391
Event: AeroSense '97, 1997, Orlando, FL, United States

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.

Citation Download Citation

Dennis W. Prather, Hal L. Levitt, Edward M. Alexander, Christie R. Marrian, and Anthony E. Spezio "Diffractive optical devices for spatial image separation", Proc. SPIE 3073, Optical Pattern Recognition VIII, (27 March 1997); https://doi.org/10.1117/12.270391

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