NASA SBIR 2006 Solicitation


PROPOSAL NUMBER: 06-2 S6.01-8210
SUBTOPIC TITLE: Passive Optics and Stepping Motors for Spaceborne and Airborne Platforms
PROPOSAL TITLE: High Performance Dual Band Photodetector Arrays for MWIR/LWIR Imaging

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
SVT Associates
7620 Executive Drive
Eden Prairie, MN 55344 - 3677
(952) 934-2100

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Yiqiao Chen
7620 Executive Dr
Eden Prairie, MN 55344 - 3677
(952) 934-2100

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
This proposed Phase II program seeks to create dual-band pixel-collocated MWIR/LWIR photodetector arrays based on III-V semiconductor materials in a Type-II superlattice structure. The Type-II superlattice offers a customizable cutoff wavelength while maintaining a lattice-matched condition to the host substrate. This superlattice also has lower Auger-recombination, which reduces dark current noise, than HgCdTe solutions, and is sensitive to normal incidence radiation, in contrast to QWIP approaches. The Phase I efforts successfully designed, fabricated and characterized a Type-II dual band IR photodetector. The superlattice material growth will be further optimized in the Phase II, along with modifying the fabrication steps required to realize dual-band photodetector arrays.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
Defense has a strong need for multi-band IR photodetector arrays for such applications and target detection and tracking. Cold objects in space require sensors operating in the MWIR/LWIR/VLWIR regimes. Chemical detectors can also utilize these devices by identifying toxic species based on infrared signatures.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
NASA can apply multi-band IR photodetectors for myriad purposes. Of current interest is pollution monitoring by remotely sensing gases based on their infrared absorption spectra. Multi-band IR can also be used to determine the temperature of distant objects with unknown emissivity.

NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.

Biomedical and Life Support
Optical & Photonic Materials
Semi-Conductors/Solid State Device Materials

Form Generated on 08-02-07 14:39