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ULTRA-HIGH ABSORPTION L-VALLEY GASB QUANTUM-WELL INFRARED DETECTORS

Award Information

Agency:
Department of Defense
Branch:
Missile Defense Agency
Award ID:
25568
Program Year/Program:
1994 / SBIR
Agency Tracking Number:
25568
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
SVT Associates
7620 Executive Drive Eden Prairie, MN 55344-3677
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Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1994
Title: ULTRA-HIGH ABSORPTION L-VALLEY GASB QUANTUM-WELL INFRARED DETECTORS
Agency / Branch: DOD / MDA
Contract: N/A
Award Amount: $59,980.00
 

Abstract:

A newly discovered class of normal incidence quantum well (QW) photodetectors is proposed for very long wavelength (14-20 um) infrared detection. The material consists of bandgap engineered GaSb and GaAlSbAs L-valley QW's and its detection is based on interconduction subband transitions. Because exteemely high absorption coefficient (9,100 cm(-1)) is predicted and has been observed, it appears to be a very promising detector material for use in astrophysics, atmospheric remote sensing, and planetary applications. High absorption coefficient is especially desirable for longer wavelength uses. We propose to fabricate this new material by molecular beam epitaxy (MBE). The MBE growth system is equipped with in-situ diagnostics for close process monitoring in order to achieve exact composition control. The QW structure parameters will be determined from theoretical modeling and their infrared properties will be thoroughly investigated.

Principal Investigator:

Peter Chow, Phd
6129411898

Business Contact:

Small Business Information at Submission:

Svt Associates, Inc.
7620 Executive Drive Eden Prairie, MN 55344

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No