Long Wave Infrared Acousto-Optic Materials:Development of Novel Materials for the Fabrication of LWIR (8-12 micron)Acousto-optic Tunable Filters for I

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911QX-04-C-0043
Agency Tracking Number: A032-2014
Amount: $70,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2004
Solicitation Year: 2003
Solicitation Topic Code: A03-047
Solicitation Number: 2003.2
Small Business Information
BRIMROSE CORP.OF AMERICA
5024 Campbell Blvd.,, Suite E, Baltimore, MD, 21236
DUNS: 064894157
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Sudhir Trivedi
 Director R&D Division
 (410) 668-5800
 strivedi@brimrose.com
Business Contact
 Diane Murray
Title: Contract Coordinator
Phone: (410) 931-7200
Email: dibrim@aol.com
Research Institution
N/A
Abstract
We propose to develop novel anisotropic materials that can be used to fabricate acousto-optic tunable filter (AOTF)-based spectral imaging systems in the LWIR (8 to 12 micron) spectral region. AOTF's are very attractive for multispectral and hyperspectral applications such as the detection of targets, backgrounds, and stand-off chemical and biological agents. Tellurium dioxide (TeO2) is the most commonly used AOTF material, and it has a spectral transmission range of 0.35-5.0 micron. However, chemical agent infrared absorption/emission primarily occurs in the 8-12 micron wavelength region. Currently, there is no technologically matured material for AOTF imaging in this wavelength range. Thus, we propose to investigate the mercurous halides (Hg2Cl2 and Hg2Br2) and tellurium (Te) for this purpose. These materials can be processed at relatively low temperatures, are nonhygroscopic, have high acousto-optic figure of merit (M2), high birefringence and relatively high transmission in the 8-12 micron spectral range. This long wave infrared (LWIR) region technology is relevant to the detection of buried mines and is an essential part of achieving the goals set forth in the Army's Third Generation Science and Technology Objective (STO).

* information listed above is at the time of submission.

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