A Fabry-Perot Scanning Spectrometer for Standoff Chemical Detection

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$97,240.00
Award Year:
1998
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
41551
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
OPTRA, INC.
461 Boston St., Topsfield, MA, 01983
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
James R. Engel
(508) 887-6600
Business Contact:
() -
Research Institution:
n/a
Abstract
OPTRA is proposing the development of a spectrometer system to measure optical radiation in the 8 to 12 micron spectral range with 8 cm(-1) resolution. The device design is based on a closed loop controlled scanning Fabry-Perot spectrometer that utilizes a spectrally consistent thermal radiation detector array. The system would offer a number of distinct advantages in terms of increased resolution, enhanced ruggedness, large dynamic range and increased spectral throughput. OPTRA has developed a very high sensitivity optical laser based displacement sensor that will be used to sense and control the position of the parallel plate spacing. A parallel plate will be mounted to three piezo-electric actuators. Three optical displacement sensors will control the plate spacing during the entire scan range required to achieve the full 8 to 12 micron spectral bandwidth while maintaining proper parallel plate alignment. OPTRA also plans to incorporate a novel thermal detecting technology as well. These thermal detectors (amorphous silicon microbolometers) will provide spectrally consistent high throughput without the need for active cooling. BENEFITS: The proposed development should advance the field of chemical detection and further the development of advanced thermal detectors for the entire 1 - 30 micron spectral range.

* information listed above is at the time of submission.

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