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Proceedings Paper

94 GHz millimetre-wave imaging system implementing optical upconversion
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Paper Abstract

Millimeter wave (mmW) imaging is continually being researched for its applicability in all weather imaging. While previous accounts of our imaging system utilized Q-band frequencies (33-50 GHz), we have implemented a system that now achieves far-field imaging at W-band frequencies (75-110 GHz). Our mmW imaging approach is unique due to the fact that optical upconversion is used as the method of detection. Optical modulators are not commercially available at W-band frequencies; therefore, we have designed our own optical modulator that functions at this frequency range. Imaging at higher frequencies increases our overall resolution two to three times over what was achieved at Q-band frequencies with our system. Herein, we present imaging results obtained using this novel detector setup, as well as key imager metrics that have been experimentally validated.

Paper Details

Date Published: 2 October 2008
PDF: 7 pages
Proc. SPIE 7117, Millimetre Wave and Terahertz Sensors and Technology, 71170T (2 October 2008); doi: 10.1117/12.799864
Show Author Affiliations
Jesse P. Samluk, Univ. of Delaware (United States)
Christopher A. Schuetz, Univ. of Delaware (United States)
Richard D. Martin, Univ. of Delaware (United States)
E. Lee Stein, Univ. of Delaware (United States)
Daniel G. Mackrides, Univ. of Delaware (United States)
Caihua Chen, Univ. of Delaware (United States)
Peng Yao, Univ. of Delaware (United States)
Rownak Shireen, Univ. of Delaware (United States)
Julien Macario, Univ. of Delaware (United States)
Dennis W. Prather, Univ. of Delaware (United States)

Published in SPIE Proceedings Vol. 7117:
Millimetre Wave and Terahertz Sensors and Technology
Keith A. Krapels; Neil A. Salmon, Editor(s)

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