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High Performance Dual Band Photodetector Arrays for MWIR/LWIR Imaging

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
83907
Program Year/Program:
2007 / SBIR
Agency Tracking Number:
067317
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
SVT Associates, Inc.
7620 Executive Drive Eden Prairie, MN 55344-3677
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2007
Title: High Performance Dual Band Photodetector Arrays for MWIR/LWIR Imaging
Agency: NASA
Contract: NNL07AA93P
Award Amount: $99,484.00
 

Abstract:

Hyperspectral imaging arrays offer far more data and the ability to discriminate objects being observed. Continued difficulties with applying HgCdTe materials, especially for LWIR, present an opportunity for the development of alternate materials. One such candidate for MWIR/LWIR photodetectors are short period Type-II superlattices based on InAs/GaInSb. This material system has the ability to tune the cutoff wavelengths during device fabrication and yet be amenable to the creation of multi-spectral serially-positioned pixels. One of the issues this Phase I program will address is the intermixing of Arsenic and Antimony at the superlattice interfaces, which can hamper LWIR operation. Improved superlattice growth will be achieved through the application of newly developed MBE apparatus. At a second level, device performance will be enhanced by novel passivation of the pixel sidewalls. The Type-II superlattices with then be applied to the creation of dual-wavelength photodetectors for MWIR/LWIR imaging.

Principal Investigator:

Yiqiao P. Chen
Principal Investigator
9529342100
chen@svta.com

Business Contact:

Leslie S. Price
Business Manager
9529342100
price@svta.com
Small Business Information at Submission:

SVT Associates
7620 Executive Drive Eden Prairie, MN 55344

EIN/Tax ID: 411764876
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No