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Physics Portal - Overview

Physics research at NIST includes everything from improving the safety of medical radiation procedures to developing future "quantum information" technologies that generate unbreakable codes. NIST provides the measurements, standards, and technical expertise scientists and industries need to push the limits of the fundamental properties of nature.

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Programs and Projects
Molecular spectroscopy

The molecular spectroscopy sub-group carries out vibrational and rotational spectroscopic analyses on experimental data obtained primarily in the … 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

Quantum information technology and correlated photon radiometry

We develop methods and devices to further radiometric techniques and quantum information technology. This includes developing and characterizing … 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

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

Instruments
Color and appearance metrology facility

The NIST Physical Measurement Laboratory has established the color and appearance metrology facility to support calibration services for 0°/45° … more

Goniophotometer for specular gloss calibrations

Specular gloss is the perception by an observer of the mirror-like appearance of a surface. The measurement of specular gloss consists of … more

Retroreflection calibration facility (CHARM)

In 1993, the United States Congress directed the U.S. Department of Transportation to establish "a standard for a minimum level of … more

Beamline 3: Facility for Irradiance Calibration Using Synchrotrons

Beamline 3 is home to the Facility for Irradiance Calibration Using Synchrotrons (FICUS). FICUS takes advantage of the calculability of … more

Transfer spectrophotometer

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

Reference transmittance spectrophotometer

The Reference Transmittance Spectrophotometer (RTS) is the national reference instrument for regular spectral transmittance measurements of … more

Software
FPGA-based multicoincidence recipe and software

This project allows investigators to build their own data acquisition instruments to collect and statistically process data in real time, then … 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

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

NIST's Integrated colony enumerator (NICE)

Enumeration of bacterial colonies on an agar plate is simple in concept, but automated colony counting is difficult due to variations in colony … 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

Electron holography

An electron hologram is a fringe modulated image containing the amplitude and phase information of an electron transparent object. The HolograFREE … more

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