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2 October 2008 94 GHz millimetre-wave imaging system implementing optical upconversion
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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.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jesse P. Samluk, Christopher A. Schuetz, Richard D. Martin, E. Lee Stein Jr., Daniel G. Mackrides, Caihua Chen, Peng Yao, Rownak Shireen, Julien Macario, and Dennis W. Prather "94 GHz millimetre-wave imaging system implementing optical upconversion", Proc. SPIE 7117, Millimetre Wave and Terahertz Sensors and Technology, 71170T (2 October 2008); https://doi.org/10.1117/12.799864
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