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Metasurface-Enhanced Absorption in a Type II Superlattice Detector

Award Information
Agency: Department of Defense
Branch: Army
Contract: W909MY-20-P-0010
Agency Tracking Number: A19B-009-0058
Amount: $164,241.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: A19B-T009
Solicitation Number: 19.B
Solicitation Year: 2019
Award Year: 2020
Award Start Date (Proposal Award Date): 2020-03-16
Award End Date (Contract End Date): 2020-09-15
Small Business Information
20 New England Business Center
Andover, MA 01810
United States
DUNS: 073800062
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 David N Woolf
 Principal Research Scientist
 (978) 689-0003
Business Contact
 David Weatherby
Phone: (978) 738-8107
Research Institution
 The University of Texas at Austin
 Elena V. Mota Elena V. Mota
Office of Sponsored Programs 3925 West Braker Lane, Building 156, Suite 3.340, MC:A9000
Austin, TX 78759
United States

 (512) 471-6424
 Nonprofit College or University

Physical Sciences Inc. (PSI), in collaboration with the University of Texas, Austin (UT), propose to develop a metasurface-enhanced type-II superlattice (T2SL) imaging detector that achieves significant absorption enhancement for midwave infrared wavelengths (MWIR, 3–5 μm) using an absorbing layer with average thickness that is sub-micron. MWIR imaging is critical need for unmanned aircrafts and infantry weapons systems, however the size, weight, and power (SWaP) of conventional imaging detectors (based on HgCdTe, MCT) is prohibitively high, dominated by large dewar-based cooling assemblies needed to reduce dark current to acceptable levels. By enhancing a low-noise T2SL detector with a metasurface, our imaging detector will have a higher quantum efficiency with a simultaneously-lower dark current than MCT detectors to enable infrared imaging at temperatures accessible to compact thermoelectric coolers.

* Information listed above is at the time of submission. *

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