High-Speed Resonant FTIR Spectrometer for Surface Contaminant Measurements

Award Information
Agency: Department of Defense
Branch: Office for Chemical and Biological Defense
Contract: W911SR-10-C-0039
Agency Tracking Number: C2-0318
Amount: $748,732.00
Phase: Phase II
Program: SBIR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: CBD09-107
Solicitation Number: 2009.1
Small Business Information
OPTRA, Inc
461 Boston Street, Topsfield, MA, -
DUNS: 038336723
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Julia Rentz Dupuis
 Senior Scientist
 (978) 887-6600
 jrentz@optra.com
Business Contact
 James Engel
Title: President
Phone: (978) 887-6600
Email: jengel@optra.com
Research Institution
N/A
Abstract
OPTRA proposes the development of a high speed resonant Fourier transform infrared (FTIR) spectrometer for surface contaminant detection via thermal luminescence. The system will generate 10,000 spectra per second over the 7-14 m spectral range at 8 cm-1 spectral resolution; the NESR is projected at 4×10-9 W/(cm2•ster•cm-1) over a 100 s integration time. The key to the system is a resonant scanner driven by a high speed actuator such as a piezo-electric transducer. The benefit of the resonant scanning is significantly reduced drive power requirements, since the actuator must only replace the losses due to damping within the system. The second key aspect is a multi-pass, reciprocating interferometer configuration which greatly reduces the physical stroke length required for a given spectral resolution. Our configuration results in two reflections off the reciprocating scanning mirror at a 45° angle of incidence; the result is a 5.7× reduction in the required stroke length relative to the standard Michelson interferometer configuration. The overall solution will offer an unprecedented combination of high spectral acquisition rate and sensitivity, making it an ideal tool for the further development of thermal luminescent detection of chemical warfare agents and toxic industrial chemicals on surfaces.

* information listed above is at the time of submission.

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