Low-Cost OP-FTIR Spectrometer with Nanoscale Reference for Industrial Monitoring

Period of Performance: 05/18/2000 - 02/18/2001


Phase 1 SBIR

Recipient Firm

Optra, Inc.
461 Boston Street
Topsfield, MA 01983
Principal Investigator


OPTRA proposes a compact, low-resolution open-path Fourier transform infrared spectrometer incorporating a OPTRA Nanoscale position sensor as the reference channel. This 16 cm-1 spectrometer system is designed for optimal signal to noise and selectivity for the identification of medium-sized industrial organic molecules in the 7 to 14 micron spectral region. The Nanoscale(TM) reference replaces the traditional helium neon laser reference and an uncooled amorphous silicon microbolometer replaces the typical cryogenically cooled mercury cadmium telluride detector The anticipated benefits of the proposed technology are its compactness, portability, and low cost. Potential commercial applications include process monitoring, environmental sensing, and emissions monitoring.