Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Infrared detector calibrations

Published

Author(s)

George P. Eppeldauer, Vyacheslav B. Podobedov

Abstract

An InSb working standard radiometer, first calibrated at NIST in 1999 against a cryogenic bolometer, was recently calibrated against a newly developed low-NEP pyroelectric transfer standard detector. The pyroelectric transfer standard, which can operate at the output of a monochromator, holds the newly realized NIST spectral power responsivity scale between 1.7 and 14 micrometers with an uncertainty of 1 % (k=2). The InSb working standard was also measured at the National Physical Laboratory of United Kingdom in 1999. The less than 2 % spectral power responsivity disagreements obtained on the InSb working standard validate the three independently realized power responsivity scales and verify the long-term stability of the InSb working standard. The InSb working standard was also used in irradiance measurement mode to validate the previously determined spectral irradiance responsivity of four narrow-band InSb radiometers that were applied to calibrate infrared target simulators. The uncertainty of the present spectral irradiance responsivity scale held by the InSb working standard is 2.5 % (k=2) in the 2 to 5.2 micrometers wavelength range.
Proceedings Title
2012 Measurement Science Conference
Conference Dates
March 22-23, 2012
Conference Location
Anaheim, CA

Keywords

detector standard, extended-InGaAs transfer standard, infrared, infrared spectral comparator, InSb standard, irradiance responsivity, low-NEP pyroelectric standard, power responsivity, spectral responsivity

Citation

Eppeldauer, G. and Podobedov, V. (2012), Infrared detector calibrations, 2012 Measurement Science Conference, Anaheim, CA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=910831 (Accessed March 28, 2024)
Created March 22, 2012, Updated February 19, 2017