Tc. Larason et al., THE NIST HIGH-ACCURACY SCALE FOR ABSOLUTE SPECTRAL RESPONSE FROM 406 NM TO 920 NM, Journal of research of the National Institute of Standards and Technology, 101(2), 1996, pp. 133-140
We describe how the National Institute of Standards and Technology obt
ains a scale of absolute spectral response from 406 nm to 920 nm. This
scale of absolute spectral response is based solely on detector measu
rements traceable to the NIST High Accuracy Cryogenic Radiometer (HACR
). Silicon photodiode light-trapping detectors are used to transfer op
tical power measurements from the HACR to a monochromator-based facili
ty where routine measurements are performed. The transfer also involve
s modeling the quantum efficiency (QE) of the silicon photodiode light
-trapping detectors. We describe our planned quality system for these
measurements that follows ANSI/NCSL Z540-1-1994. A summary of current
NIST capabilities based on these measurements is also given.