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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. Subject Areas
Programs and Projects
Spectroscopy of Engineered Atoms
Experiments with atomic systems designed to have features more favorable for improved measurements of atomic properties and constants of nature. … more
IECn42
The purpose of the IEC 62755 standard N42 data format is to facilitate manufacturer-independent transfer of information from radiation measurement … more
Quantum Frequency Conversion of Single Photons
Optical frequency conversion, in which the color of light is changed, is a process that has numerous applications in physics and … more
Differential Absorption LIDAR Test Bed Facility for the Detection and Quantification of Greenhouse Gases
We are developing a method for accurately quantifying greenhouse gas emissions from natural and anthropogenic sources and sinks to meet the … more
Biophysics of Model Membranes
Synthetic cell membrane constructs allow the simplification and complete control of a more complicated cellular system, … more
Laser Radiometry
Accurate characterization of optoelectronic equipment is important to applications such as optical telecommunications, medical devices, materials … more Instruments
Continuous-wave terahertz spectrometer
The continuous-wave terahertz spectrometer makes use of two near-infrared lasers. The first laser is a fixed-frequency cw ring Ti:Sapp laser … more
Facility for spectroradiometric calibrations (FASCAL)
The FASCAL has been in continuous operations since 1970s for the calibrations of spectral radiance of sources. The measurements are performed by … more
Aperture area measurement facility
NIST has established an absolute aperture area measurement facility for circular and near-circular apertures use in radiometric instruments. The … more
Infrared reference integrating sphere (IRIS)
An integrating-sphere system has been designed and constructed for the measurement of multiple optical properties in the infrared spectral range. … more
Telescope calibration facility
The Telescope Calibration Facility (TCF) was designed to support the NIST Stars project by providing a facility to radiometricly calibrate long … more
Advanced infrared radiometry and imaging
Radiation thermometers and blackbodies can be calibrated using a set of blackbodies. These blackbodies can vary in size and can be … more Software
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
Noncollinear phase matching in uniaxial and biaxial crystals
Although significant work has been done to characterize collinear phase matching and to present many of its applications, noncollinear phase … more
FPGA-based multicoincidence recipe and software
The Data Acquisition Platform project allows one to build their own data acquisition instruments that collect and, if necessary, statistically … 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
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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