Share Email Print
cover

Proceedings Paper

Infrared detector spectral responsivity calibration facility at the National Institute of Standards and Technology (NIST)
Author(s): Alan L. Migdall; George P. Eppeldauer; Christopher L. Cromer
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The National Institute of Standards and Technology (NIST) is developing a facility to provide absolute responsivity calibrations of detectors in the 2 to 20 micrometers spectral region. The goal is to tie the measurements of NIST's primary radiometric scale with a 1 (sigma) uncertainty of approximately 5%. The system uses chopped thermal IR sources, a room temperature prism/grating spectrometer for spectral selectivity with 1 - 2% spectral resolution and a cryogenic bolometer as a transfer standard detector. The composite design bolometer has an absorbing surface 5 mm in diameter, a nonlinearity < 1% over 5 decades and a responsivity of approximately 1 X 104 V/W without amplification. This bolometer is being calibrated against the High Accuracy Cryogenic Radiometer, the nation's primary standard for optical radiometric measurements. The bolometer's spectral response will also be measured using the Low Background Infrared facility at NIST, the nation's primary blackbody calibration facility.

Paper Details

Date Published: 23 June 1994
PDF: 8 pages
Proc. SPIE 2227, Cryogenic Optical Systems and Instruments VI, (23 June 1994); doi: 10.1117/12.178614
Show Author Affiliations
Alan L. Migdall, National Institute of Standards and Technology (United States)
George P. Eppeldauer, National Institute of Standards and Technology (United States)
Christopher L. Cromer, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 2227:
Cryogenic Optical Systems and Instruments VI
James B. Heaney; Lawrence G. Burriesci, Editor(s)

© SPIE. Terms of Use
Back to Top