T. R. Gentile, J. M. Houston, and C. L. Cromer, "Realization of a scale of absolute spectral response using the National Institute of Standards and Technology high-accuracy cryogenic radiometer," Appl. Opt. 35, 4392-4403 (1996)
Using the National Institute of Standards and Technology high-accuracy cryogenic radiometer (HACR), we have realized a scale of absolute spectral response between 406 and 920 nm. The HACR, an electrical-substitution radiometer operating at cryogenic temperatures, achieves a combined relative standard uncertainty of 0.021%. Silicon photodiode light-trapping detectors were calibrated against the HACR with a typical relative standard uncertainty of 0.03% at nine laser wavelengths between 406 and 920 nm. Modeling of the quantum efficiency of these detectors yields their responsivity throughout this range with comparable accuracy.
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The combined relative standard uncertainty at each wavelength is the sum (in quadrature) of the type A and combined type B uncertainties listed in Table 2.
Table 2
Components of the Combined Relative Standard Uncertainty in ηe for Each Wavelength Listed in Table 1
The uncertainty in PL includes the uncertainty components in T, PS, and the applicable wavelength-independent components.
This contribution is not applicable to data at 828.30, 919.85, and 950.95 nm.
The combined relative standard uncertainty at each wavelength is the sum (in quadrature) of the type A and combined type B uncertainties listed in Table 2.
Table 2
Components of the Combined Relative Standard Uncertainty in ηe for Each Wavelength Listed in Table 1
The uncertainty in PL includes the uncertainty components in T, PS, and the applicable wavelength-independent components.
This contribution is not applicable to data at 828.30, 919.85, and 950.95 nm.
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