Enhanced Capability Point Combined Bio and Chem Sensor

Award Information
Agency: Department of Defense
Branch: Office for Chemical and Biological Defense
Contract: W911SR-07-C-0055
Agency Tracking Number: C071-105-0124
Amount: $99,979.00
Phase: Phase I
Program: SBIR
Awards Year: 2007
Solicitation Year: 2007
Solicitation Topic Code: CBD07-105
Solicitation Number: 2007.1
Small Business Information
12725 SW Millikan Way, Suite 230, Beaverton, OR, 97005
DUNS: 124348652
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 George Williams
 (971) 223-5646
Business Contact
 George Williams
Title: President
Phone: (971) 223-5646
Email: georgew@voxtel-inc.com
Research Institution
Many chemical agents have unique absorption spectra in the 9-to-11μm wavelength range, and sufficient absorption cross sections for detection at trace concentration levels. In this proposal, a short standoff range LWIR DISC LIDAR will be developed, providing comprehensive chemical and biological standoff detection, as well as MWIR detection of industrial chemicals. The LIDAR is based on a 1 mm diameter electron-initiated avalanche photodiode (eAPD) with an approximate 5 MHz bandwidth. The advantage of an eAPD over a conventional photodiode is that a narrowband filter can be used to reduce background to the level of the amplifier. The HgCdTe eAPD, with its noiseless gain, provides the opportunity to operate at high frequencies and over a wide spectral range, with greater sensitivity than a system based on a photodiode alone. HgCdTe APDs operate at low voltage, and have shown to have excellent uniformity and good yields. Exponential-gain values well in excess of 1,000 have been obtained in HgCdTe APDs with essentially zero avalanche-induced noise. In Phase I, we will design an HgCdTe APD based DISC LIDAR system, demonstrate infrared HgCdTe APD performance, and demonstrate the technologies necessary for a Phase II system development and demonstration program.

* Information listed above is at the time of submission. *

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