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Proceedings Paper

Characterization and performance of optomechanical uncooled infrared imaging system
Author(s): Yang Zhao; Jongeun Choi; Roberto Horowitz; Arunava Majumdar; John E. Kitching; Paul R. Norton
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Paper Abstract

An uncooled infrared (IR) imaging system based on thermomechanical deformation of bi-material cantilever beams combined with optical detection of beam deflection has been developed. The focal plane array (FPA) contains 300 x 300 cantilever sensors, which are optimized to detect IR radiation in the 8-14 μm wavelength range. Noise and response analysis show that the noise-equivalent temperature difference (NETD) of the system is 200 mK using f/1 IR optics and 10 Hz frame capture rate. The NETD is found to be limited by the shot noise of the visible CCD imager used in the optical readout. Statistical correlation between two repeated tests separated by 10 minutes shows that the response of over 70 percent pixels are repeatable to within 60 percent.

Paper Details

Date Published: 23 January 2003
PDF: 11 pages
Proc. SPIE 4820, Infrared Technology and Applications XXVIII, (23 January 2003); doi: 10.1117/12.450542
Show Author Affiliations
Yang Zhao, Univ. of California/Berkeley (United States)
Jongeun Choi, Univ. of California/Berkeley (United States)
Roberto Horowitz, Univ. of California/Berkeley (United States)
Arunava Majumdar, Univ. of California, Berkeley (United States)
John E. Kitching, National Institute of Standards and Technology (United States)
Paul R. Norton, IR Vision (United States)


Published in SPIE Proceedings Vol. 4820:
Infrared Technology and Applications XXVIII
Bjorn F. Andresen; Gabor F. Fulop; Marija Strojnik, Editor(s)

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