Physics Portal - Overview

Quantum science and engineering has the potential to revolutionize 21st century technology in much the same way that lasers, electronics, and … more

We study how material properties, surface topography, and contaminants affect the distribution of light scattered from surfaces. Our aim is to … more

This program aims to develop standards, methods, and modeling for assessing the periodic structures using optical reflectance and transmittance … 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

Graphene, a single layer of carbon atoms, is one of the most likely materials to produce the next breakthrough in the electronics … more

Background: Collagen type 1 is the most prevalent extracellular protein in connective tissue, and is part of the family of collagens that are … more

Goniometric optical scatter instrument (GOSI) The bidirectional reflectance distribution function (BRDF) quantifies the angular distribution of … more

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

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

The FASCAL has been in continuous operations since 1970s for the calibrations of spectral radiance of sources. The measurements are performed by … more

NIST has established an absolute aperture area measurement facility for circular and near-circular apertures use in radiometric instruments. The … more

An integrating-sphere system has been designed and constructed for the measurement of multiple optical properties in the infrared spectral range. … more

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

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

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

Although significant work has been done to characterize collinear phase matching and to present many of its applications, noncollinear phase … more

The Data Acquisition Platform project allows one to build their own data acquisition instruments that collect and, if necessary, statistically … more

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