Journal
APPLIED PHYSICS LETTERS
Volume 106, Issue 16, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4918983
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Funding
- ERC
- Labex SEAM Project Capture [ANR-11-IDEX-0005-02]
- EPSRC
- Royal Society
- Wolfson Foundation
- FP7 ITN NOTEDEV network
- EPSRC [EP/J005282/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/J005282/1] Funding Source: researchfish
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We report on the implementation of 5 THz quantum well photodetector exploiting a patch antenna cavity array. The benefit of our plasmonic architecture on the detector performance is assessed by comparing it with detectors made using the same quantum well absorbing region, but processed into a standard 45 degrees polished facet mesa. Our results demonstrate a clear improvement in responsivity, polarization insensitivity, and background limited performance. Peak detectivities in excess of 5 x 10(12) cmHz(1/2)/W have been obtained, a value comparable with that of the best cryogenic cooled bolometers. (C) 2015 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.
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