Abstract

A high-accuracy cryogenic radiometer has been developed at the National Institute of Standards and Technology to serve as a primary standard for optical power measurements. This instrument is an electrical-substitution radiometer that can be operated at cryogenic temperatures to achieve a relative standard uncertainty of 0.021% at an optical power level of 0.8 mW. The construction and operation of the high-accuracy cryogenic radiometer and the uncertainties in optical power measurements are detailed.

© 1996 Optical Society of America

Realization of a scale of absolute spectral response using the National Institute of Standards and Technology high-accuracy cryogenic radiometer

T. R. Gentile, J. M. Houston, and C. L. Cromer
Appl. Opt. 35(22) 4392-4403 (1996)

Calibration of a pyroelectric detector at 10.6 µm with the National Institute of Standards and Technology high-accuracy cryogenic radiometer

T. R. Gentile, J. M. Houston, G. Eppeldauer, A. L. Migdall, and C. L. Cromer
Appl. Opt. 36(16) 3614-3618 (1997)

Synchrotron-radiation-operated cryogenic electrical-substitution radiometer as the high-accuracy primary detector standard in the ultraviolet, vacuum-ultraviolet, and soft-x-ray spectral ranges

H. Rabus, V. Persch, and G. Ulm
Appl. Opt. 36(22) 5421-5440 (1997)

Characterization of an absolute cryogenic radiometer as a standard detector for radiant-power measurements

R. U. Datla, K. Stock, A. C. Parr, C. C. Hoyt, P. J. Miller, and P. V. Foukal
Appl. Opt. 31(34) 7219-7225 (1992)

Long-term temporal stability of the National Institute of Standards and Technology spectral irradiance scale determined with absolute filter radiometers

Howard W. Yoon and Charles E. Gibson
Appl. Opt. 41(28) 5872-5878 (2002)