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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 18 — Jun. 20, 2012
  • pp: 4157–4167

Passive 77 GHz millimeter-wave sensor based on optical upconversion

John P. Wilson, Christopher A. Schuetz, Thomas E. Dillon, Peng Yao, Charles E. Harrity, and Dennis W. Prather  »View Author Affiliations

Applied Optics, Vol. 51, Issue 18, pp. 4157-4167 (2012)

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A passive millimeter-wave (mmW) sensor operating at a frequency of 77 GHz is built and characterized. The sensor is a single pixel sensor that raster scans to create an image. Optical upconversion is used to convert the incident mmW signal into an optical signal for detection. Components were picked to be representative of a single element in a distributed aperture system. The performance of the system is analyzed, and the noise equivalent temperature difference is found to be 0.5 K (for a 1 s integration time) with a diffraction limited resolution of 8mrad. Representative images are shown that demonstrate the phenomenology associated with this spectrum.

© 2012 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(040.2235) Detectors : Far infrared or terahertz
(280.4991) Remote sensing and sensors : Passive remote sensing
(110.5405) Imaging systems : Polarimetric imaging
(010.5630) Atmospheric and oceanic optics : Radiometry

ToC Category:
Atmospheric and Oceanic Optics

Original Manuscript: March 29, 2012
Revised Manuscript: April 20, 2012
Manuscript Accepted: April 22, 2012
Published: June 15, 2012

John P. Wilson, Christopher A. Schuetz, Thomas E. Dillon, Peng Yao, Charles E. Harrity, and Dennis W. Prather, "Passive 77 GHz millimeter-wave sensor based on optical upconversion," Appl. Opt. 51, 4157-4167 (2012)

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