[1] [1] Foukal P V, Kochling H, Miller P. Cryogenic absolute radiometer as laboratory irradiance standards, remote sensing detectors, and pyroheliometers. Appl. Opt., 1990, 29(7):988～993

[2] [2] Gentile T R, Houston J M, Hardis J E et al.. The NIST high accuracy cryogenic radiometer. Appl. Opt., 1996, 35(7):1056～1068

[4] [4] Kubarsepp T, Karha P, Ikonen E. Characterization of a polarization-independent transmission trap detector. Appl. Opt., 1997, 36(13):2807～2812

[5] [5] Taylor B N, Kuyatt C E. Guidelines for evaluating and expressing the uncertainty of NIST measurement results. http://physics.nist.gov/pubs/guidelines