Tuning D* with modified thermal detectors
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United States of America Patent
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Oct 9, 2012
Grant Date -
Jun 4, 2009
app pub date -
Nov 25, 2008
filing date -
Nov 30, 2007
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Abstract
Disclosed is apparatus and methodology for producing thermal detectors with spectral responsivities that mimic the absorptions of chemical analytes, and whose detector characteristics approach those of conventional broad-band thermal detectors. In an exemplary arrangement, the methodology provides for modification of a known Si-based thermal detector by adding a near-infrared dye absorbing film above a reflector deposited directly on the thermal detector element. The method is general to all types of thermal detectors that can be divided into separate absorber and thermal sensor components.
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