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AOTF Based Spectro-Polarimetric Imaging System For Stand Off Chemical Detection

Award Information
Agency: Department of Defense
Branch: Office for Chemical and Biological Defense
Contract: W911SR-14-C-0065
Agency Tracking Number: C2-0402
Amount: $999,896.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: CBD13-104
Solicitation Number: 2013.3
Solicitation Year: 2013
Award Year: 2014
Award Start Date (Proposal Award Date): 2015-08-21
Award End Date (Contract End Date): 2016-09-17
Small Business Information
P.O. Box 616 19 Loveton Circle
Sparks, MD 21152-9201
United States
DUNS: 000000000
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Jolanta Soos
 Chief Technology Officer/
 (410) 472-2600
Business Contact
 Diane Murray
Title: Contract Coordinator
Phone: (936) 588-6901
Research Institution

We propose an Acousto-Optic Tunable Filter (AOTF) Spectropolarimetric Imaging System for Enhanced Standoff Chemical Detection at Long Wave Infrared (LWIR) wavelengths. This work entails development of suitable LWIR material, design of the LWIR AOTF, and design of the hyperspectral imaging sensor using a focal plane array. Currently, there is no technologically mature, commercially available material at reasonable price for AOTF imaging in the LWIR wavelength range. We have been actively researching suitable materials for LWIR AOTF imaging systems for some time, and we also develop AOTF products commercially. We propose using mercurous halide crystals to fabricate the AOTF. The AOTF component has no moving parts, making it a rugged and reliable device, and it provides polarimetric imaging capabilities. Polarization analysis adds a valuable signature feature to imaging data, allowing a wide variety of targets to be detected with greatly enhanced contrast. The proposed hyperspectral polarimetric imaging system will have discrimination capabilities comparable to existing hyperspectral imaging chemical/biological sensors. The sensor will be able to passively detect small chemical plumes (25 meters or smaller) of a chemical agent such as sarin at relevant concentrations (less than 10 ppmv) at a distance of 5 kilometers or more under ambient conditions.

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

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