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Optical Technology Instruments

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Si Photodiode Transfer Standard
Last Modified: 09/03/2015

Silicon (Si) photodiodes are issued by NIST as transfer standard detectors throughout the extreme ultraviolet spectral region (5 nm to 254 nm). … more

SIRCUS facility and uncertainties
Last Modified: 07/29/2015

SIRCUS facility: The basic SIRCUS calibration setup is shown at the right. The output from a tunable laser is sent through an intensity … more

Spectral comparator facilities
Last Modified: 08/21/2015

Visible to near-infrared spectral comparator facility (Vis/NIR SCF) The Vis/NIR SCF is a monochromator-based system that typically measures the … more

Spectrally tunable lighting facility
Last Modified: 11/28/2014

Solid-state lighting (SSL) is increasingly being introduced into the market and it is expected that many of the light sources currently used for … more

Last Modified: 07/31/2014

STARR is the national reference instrument for spectral reflectance measurements of spectrally neutral, non-fluorescent samples at room … more

Synchrotron Ultraviolet Radiation Facility SURF III
Last Modified: 09/22/2015

The Synchrotron Ultraviolet Radiation Facility SURF III is operated by the Ultraviolet Radiation Group as a stable light source for radiometry and … more

System for infrared spectral emittance of materials
Last Modified: 07/27/2015

This facility enables the measurement of spectral emittance using the direct method of radiance comparison of the sample with a blackbody … more

Telescope calibration facility
Last Modified: 10/19/2011

The Telescope Calibration Facility (TCF) was designed to support the NIST Stars project by providing a facility to radiometricly calibrate long … more

Transfer spectrophotometer
Last Modified: 07/31/2014

A Perkin-Elmer Lambda 1050 spectrophotometer is used to complement the reference instruments. It performs this function by measuring samples … more

Ultraviolet Spectral Power Responsivity Scale Realization
Last Modified: 08/28/2015

The NIST spectral power responsivity scale is based on cryogenic electrical substitution radiometers (ESRs) , which are considered the highest … more

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