Enhanced Capability Point Combined Bio and Chem Sensor

Award Information
Agency:
Department of Defense
Branch
Office for Chemical and Biological Defense
Amount:
$69,999.00
Award Year:
2007
Program:
SBIR
Phase:
Phase I
Contract:
W911SR-07-C-0055
Agency Tracking Number:
C071-105-0124
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
VOXTEL, INC.
12725 SW Millikan Way, Suite 230, Beaverton, OR, 97005
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
124348652
Principal Investigator:
George Williams
President
(971) 223-5646
georgew@voxtel-inc.com
Business Contact:
George Williams
President
(971) 223-5646
georgew@voxtel-inc.com
Research Institution:
n/a
Abstract
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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