THz distributed detectors and arrays
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United States of America Patent
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May 31, 2016
Grant Date -
Oct 1, 2015
app pub date -
Mar 17, 2014
filing date -
Mar 15, 2013
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Abstract
Terahertz (THz) distributed detectors, and arrays of detectors that utilize structured surface plasmonic effects for more efficient coupling to free space are discussed. One example distributed detector includes a detector junction comprising a Schottky or tunneling interface between a semiconductor and a detector metal, an ohmic junction comprising an ohmic interface between the semiconductor and an ohmic metal, and a gap that separates the detector junction from the ohmic junction. Structured surface plasmons concentrate an electric field in the gap when the distributed detector is exposed to THz radiation polarized perpendicular to the gap.
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