Co-Located Dual Band (VLWIR1/VLWIR2) Focal Plane Arrays for Space Applications

Award Information
Agency:
Department of Defense
Branch
Missile Defense Agency
Amount:
$68,585.00
Award Year:
2002
Program:
SBIR
Phase:
Phase I
Contract:
HQ0006-03-C-0005
Award Id:
59192
Agency Tracking Number:
022-0001
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
8 Raymond Ave, Suite #4, Salem, NH, 03079
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
067810648
Principal Investigator:
PeterKannam
President
(603) 894-1402
kannamp@adtinc.mv.com
Business Contact:
JamesWilen, Jr.
Business Development
(603) 894-1402
wilenj@adtinc.mv.com
Research Institute:
n/a
Abstract
"We propose to develop Co-Located Dual Band (VLWIR1/VLWIR2) Focal Plane Arrays on Strained Layer Superlattices (SLS) Material. We propose innovative Al(x)Ga(1-x)As/InAs SLS layers to produce detectors for very long wavelength (22 um). The key features are:1) SLS Material Growth by Migration Enhanced Epitaxy (MEE) Technique. Type II SLS layers are grown with Migration Enhanced Epitaxy Technique by using a Molecular Beam Epitaxial (MBE) reactor.2) SLS Structures for VLWIR Waveband. Detailed analysis is conducted by using 8-band k.p. model to design SLS structures for Very-Long Wavelength (22um) detection.3) Co-Located Dual Band (VLWIR1/VLWIR2) SLS Structures. Co-Located SLS Structures are grown for VLWIR1 (10-16um) and VLWIR2 (16-22um) waveband ranges with Al(x)Ga(1-x)As/InAs SLS layers.4) Simultaneous Detection of Dual Band Signals. The readout circuitry and the interconnect scheme are designed to detect the two waveband signals in a simultaneous fashion during each frame.5) Cross Talk Elimination. The design of the 2-color structure is such that the cross talk among the wave bands and also among the pixels are eliminated.High Performance Al(x)Ga(1-x) As/InAs dectors were already fabricated and tested for SWIR(1-3um) waveband. The results showed: Detectivity (cm-Hz(1/2)/W)=1.3E12 at 77K, 1.4E11 at 250K, 2E10 at 300K, and quantum efficiency (n) = 72%During Phase 1, the growth of Al(x)Ga(1-x)Sb/InAs SLS structures will be optimized and

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government