A Fabry-Perot Scanning Spectrometer for Standoff Chemical Detection

Award Information
Agency: Department of Defense
Branch: Army
Contract: N/A
Agency Tracking Number: 41551
Amount: $97,240.00
Phase: Phase I
Program: SBIR
Awards Year: 1998
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
461 Boston St., Topsfield, MA, 01983
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 James R. Engel
 (508) 887-6600
Business Contact
Phone: () -
Research Institution
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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