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Proceedings Paper

Sparse aperture millimeter-wave imaging using optical detection and correlation techniques
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Paper Abstract

For many applications, the usefulness of millimeter-wave imagers is limited by the large aperture sizes required to obtain images of sufficient resolution. Sparse aperture techniques could open up wider range of applications by mitigating the volume requirements of high resolution imagers. In previous proceedings, we have presented an approach towards the realization of millimeter-wave, sparse-aperture imagers using optical techniques. By using electro-optic modulators to upconvert received millimeter-wave fields onto an optical carrier, such fields can be readily captured, routed, and processed using optical techniques. Such techniques could provide significant advantages over traditional heterodyne techniques. Herein, we present progress towards the physical realization of such an imager. Specifically, we discuss the implementation challenges that must be addressed to create such an imager and present in further detail the numerous advantages such an approach will yield. We also present results obtained from a working prototype system and show that these results are in good agreement with theoretical performance models.

Paper Details

Date Published: 1 May 2007
PDF: 8 pages
Proc. SPIE 6548, Passive Millimeter-Wave Imaging Technology X, 65480B (1 May 2007); doi: 10.1117/12.719811
Show Author Affiliations
C. A. Schuetz, Univ. of Delaware (United States)
R. D. Martin, Univ. of Delaware (United States)
I. Biswas, Univ. of Delaware (United States)
M. S. Mirotznik, Catholic Univ. of America (United States)
S. Shi, Univ. of Delaware (United States)
G. J. Schneider, Univ. of Delaware (United States)
J. Murakowski, Univ. of Delaware (United States)
D. W. Prather, Univ. of Delaware (United States)

Published in SPIE Proceedings Vol. 6548:
Passive Millimeter-Wave Imaging Technology X
Roger Appleby; David A. Wikner, Editor(s)

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