Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: DASG60-02-P-0120
Agency Tracking Number: 02-0917
Amount: $70,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Voxtel, Inc.
2640 SW Georgian Place, Portland, OR, 97201
DUNS: 124348652
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 James Gates
 Senior Scientist
 (503) 421-4389
Business Contact
 George Williams
Title: Managing Director
Phone: (503) 421-4389
Email: georgemwilliams2@netscape.net
Research Institution
High performance ultraviolet solar blind APD arrays are presently unavailable. In this Phase I SBIR, Voxtel Inc proposes to optimize the design of a UV solar blind avalanche photodiode array enabled by: advances in GaN and AlGaN material growth andprocessing, a novel device architecture, and monolithic integration with high bandwidth, low noise, active/passive quenching, readout integrated circuitry (ROIC). Our Phase I research will perform design trades and 3D simulations of at least two detectorarchitectures suitable for such high sensitivity applications including: 1) a GaN APD with an optimized avalanche layer and 2) a vertical Schottky contact GaN/AlGaN heterostructure APD. Concurrent to detector developments, a high performance ROIC will bedesigned and optimized for monolithically integration to enabling highly sensitive and high-speed sensor operation. Highly sensitivity, high speed photodetectors operating in the ultraviolet, especially in the solar blind region below 0.4 microns, areneeded for both military and commercial applications including lidar, Cherenkov radiation monitoring, particle size and velocity measurements, flame sensing (including hydrogen), biological agent detection, time resolved UV spectroscopy, coronal studies,missile and shellfire detection, and ionosphere studies.

* information listed above is at the time of submission.

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