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Optical Technology Portal

Programs and Projects
Applied spectroradiometry and imaging metrology

Spectroradiometers are widely used for acquiring colorimetric, photometric, and radiometric quantities with a single measurement for a variety of … more

Optical medical imaging

The Optical Medical Imaging program was established to advance the application of optical imaging in surgical, clinical, and medical practices. … more

Building the next generation reference reflectometer

ROSI (Robotic Optical Scatter Instrument) is a new facility for measuring reflectance and scattering of materials in the ultraviolet to short-wave … more

EUV Detector Calibrations

Transfer standard photodiodes may be purchased with a calibration in the range from 5 nm to 254 nm. Other detectors supplied by the customer may … more


Spectrophotometry is the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength. While … more


The purpose of photometry is to measure light in a way that takes the sensitivity of human visual system into account. While radiometry measures … more

Beamline 2: Spectrometer Calibrations

Absolute irradiance calibrations based on the calculability of synchrotron radiation are performed on beamline 2. See GOES-R/EXIS and SDO as … more

Beamline 8: EUV Surface Chemistry & Lifetime

Sometime soon, microchip fabricators will take the next major step in the relentless reduction of feature size, from the current minimum of 22 nm … more

Synchrotron Ultraviolet Radiation Facility SURF III

The Synchrotron Ultraviolet Radiation Facility SURF III is operated by the National Institute of Standards and Technology NIST as a stable light … more

Beamline 5: Electron beam imaging

Beamline 5 of the Synchrotron Ultraviolet Radiation Facility is a diagnostics end-station used to determine the transverse size of the stored … more

Beamline 10: Electron beam imaging

Beamline 10 of the Synchrotron Ultraviolet Radiation Facility is a diagnostics end-station used to determine the transverse size of the stored … more

NIST Gonio-spectroradiometer

The NIST gonio-spectroradiometer is used to measure total spectral radiant flux (TSRF) of incandescent lamps. The instrument consists of a 3-axis … more

Modeled integrated scattering tool (MIST)

The MIST program has been developed to provide users with a general application to model an integrated scattering system. The program performs an … more


SCATMECH is an object-oriented C++ class library developed to distribute models for light scattering applications. Included in the library are … more

jb95 Spectral fitting program

A graphical user interface program, JB95 , based on a Windows 95 © API platform has been written in the C programming language to aid in the … more

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