Advanced Development for Defense Science and Technology

Award Information
Agency:
Department of Defense
Branch
Defense Advanced Research Projects Agency
Amount:
$746,542.00
Award Year:
2009
Program:
SBIR
Phase:
Phase II
Contract:
W31P4Q-09-C-0249
Agency Tracking Number:
07SB2-0096
Solicitation Year:
2007
Solicitation Topic Code:
SB072-006
Solicitation Number:
2007.2
Small Business Information
Southwest Sciences, Inc.
1570 Pacheco Street, Suite E-11, Santa Fe, NM, 87505
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
153579891
Principal Investigator:
David Bomse
Principal Research Scient
(505) 984-1322
dbomse@swsciences.com
Business Contact:
Alan Stanton
President
(505) 984-1322
astanton@swsciences.com
Research Institution:
n/a
Abstract
This SBIR project is designed to develop a high-sensitivity optical spectroscopic method for rapid health screening and monitoring including warfighter field diagnostics and, potentially, detection of chemical warfare agents. The method called noise-immune, cavity-enhanced, optical heterodyne spectroscopy (NICE-OHMS) was invented about 10 years ago, but has been considered too complex for commercial development. We are taking advantage of recent improvements in enabling technologies to make NICE-OHMS reliable, rugged, and portable. We anticipate, by the end of Phase II, two-to-four orders of magnitude sensitivity improvement over competing spectroscopic methods with only a modest increase in cost. All previous NICE-OHMS research has used gas samples at reduced pressure because the laser modulation conditions are dictated by the widths of the spectroscopic lines being probed. These widths increase with increasing pressure. One key part of our work is shifting operation to atmospheric pressure samples. This has the obvious advantage of simplifying NICE-OHMS by eliminating vacuum pumps and control valves; on the other hand it requires modulation frequencies exceeding 1 GHz. Suitable inexpensive components have only recently become commercially available. These were tested successfully in Phase I and are key parts of the Phase II prototype spectrometer.

* information listed above is at the time of submission.

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