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18 November 1999 Miniature PbS sensor for NIR spectroscopy
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Proceedings Volume 3857, Chemical Microsensors and Applications II; (1999)
Event: Photonics East '99, 1999, Boston, MA, United States
A new lead sulfide integrating detector assembly has been developed for applications in NIR spectroscopy in the 1 - 3 micron spectral region. The assembly contains a 128 element, thermoelectrically cooled, multiplexed detector array sensor, a driver control unit, and a software interface for signal digitization and processing. The system has selectable single scan integration times of 1 ms - 25 ms, and a signal-to-noise dynamic range of greater than 1,000 at 10 ms integration time. Dark referencing is used to control dark signal drift and to maintain pixel-to-pixel offset uniformity to within 1%. The PbS detector assembly has been interfaced with an optical fiber, a dispersion grating, and a laptop computer, to produce a compact 1 - 3 micron spectrophotometer with a per pixel resolution of 12 nanometer.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Anthony S. Lee "Miniature PbS sensor for NIR spectroscopy", Proc. SPIE 3857, Chemical Microsensors and Applications II, (18 November 1999);

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