Computer Science
Scientific paper
May 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995spie.2474..338h&link_type=abstract
Proc. SPIE Vol. 2474, p. 338-346, Smart Focal Plane Arrays and Focal Plane Array Testing, Marc Wigdor; Mark A. Massie; Eds.
Computer Science
Scientific paper
A system for measuring the average relative spectral response of long wavelength infrared focal plane arrays (IRFPA) has been developed. Typically, the spectral response of sister detectors, fabricated on the same wafer as the FPA detectors are characterized in lieu of characterizing the actual IRFPA and it is generally assumed that the IRFPA detectors are equivalent to the sister detectors. On occasion, however, this assumption has proven to be incorrect. The spectral capability described here was implemented by interfacing an IRFPA test station to a long wavelength monochrometer, allowing the spectral response of the detectors in the IRFPA to be measured while the IRFPA operates in a normal manner. The spectral response measurements made with this system are validated by determining the peak wavelength responsivity of a long wavelength IRFPA, whose spectral response was measured with the system, using various blackbody temperatures. Sample spectral response data are presented along with the responsivities determined. With this spectral response measurement and a blackbody IRFPA measurement capability, complete radiometric characterization of IRFPAs can be performed.
Arrington Douglas C.
Dole Gary A.
Gramer Mark E.
Hubbs John E.
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