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Long and Very Long Wavelenght Non-equilibrium Superlattice Infrared Detectors

Award Information

Agency:
Department of Defense
Branch:
Missile Defense Agency
Award ID:
69601
Program Year/Program:
2004 / SBIR
Agency Tracking Number:
B041-038-0402
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
EPIR Technologies Inc
590 Territorial Drive, Suite B Bolingbrook, IL -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2004
Title: Long and Very Long Wavelenght Non-equilibrium Superlattice Infrared Detectors
Agency / Branch: DOD / MDA
Contract: FA9453-04-M-0253
Award Amount: $99,944.00
 

Abstract:

We propose a new generation of non-equilibrium, high efficiency long and very long wavelength infrared (8 microns and longer) superlattice-based detectors that operate in the 40 to 77 K temperature range. This technology will lead to the possibility of improving the performance of current infrared focal plane arrays. It will also permit the creation of very long wavelength infrared detection capabilities that are necessary for a variety of MDA missions. We plan to achieve the objectives by combining the advantages of the molecular beam epitaxy crystal growth technique and an innovative non-equilibrium device architecture that will decrease the dark current. In addition, we plan to introduce superlattice structures to control the energy bandgap more precisely. For the most frequently used infrared photon detecting material bulk HgCdTe, a small variation in the CdTe mole fraction causes a big change in the energy gap. However, the gap is determined by layer thicknesses in a superlattice, which can be better controlled. We propose to use HgTe/CdTe superlattice infrared materials grown by molecular beam epitaxy directly on CdTe/Si or CdZnTe bulk substrates. This will make it possible to produce high quality absorber layers with lower defect densities, and in turn, high performance detectors with lower dark currents and improved detectivities.

Principal Investigator:

Silviu Velicu
R&D Director
6307710206
svelicu@epir.com

Business Contact:

Sivalingam Sivananthan
President
6307710202
siva@epir.com
Small Business Information at Submission:

EPIR TECHNOLOGIES, INC.
590 Territorial Drive, Suite B Bolingbrook, IL 60440

EIN/Tax ID: 364196918
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No