Published August 15, 1982
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Imaging antenna array at 119 µm
Abstract
A focal-plane imaging antenna array has been demonstrated at 119 µm. The array is a line of evaporated silver bow-tie antennas with bismuth microbolometer detectors on a silicon substrate. Radiation is coupled into the array by a lens placed on the back of the substrate. The bolometers are thermally isolated from the silicon substrate with a half-micron layer of polyimide. The array performance is demonstrated by coherent imaging of a series of holes at half the diffraction-limited cut-off frequency.
Additional Information
© 1982 American Institute of Physics. Received 16 April 1982; accepted for publication 7 June 1982. We appreciate the support of the Jet Propulsion Laboratory and the Department of Energy under contract DeAM03-765F-0010 Task IIA. We would like to thank Professor S. E. Schwarz at U.C. Berkeley for helping us with the mask making, Professor N.C. Luhmann, Jr. and Dr. W.A. Peebles at UCLA for the loan of evaporators and facilities, and Professor D. Psaltis at Caltech for his insights on coherent imaging.Files
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