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Physics Programs & Projects

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International System of Units (SI)
Last Updated Date: 04/29/2014

The International System of Units (SI) provides definitions of units of measurement that are widely accepted in science and technology and which … more

Broadband Coherent anti-Stokes Raman Spectroscopy of Thin Films
Last Updated Date: 04/16/2014

Coherent anti-Stokes Raman Scattering (CARS) is a high sensitivity alternative to conventional Raman spectroscopy. Ultrafast lasers are used to … more

NIST Standard Reference Simulation Website
Last Updated Date: 04/10/2014

The Standard Reference Simulation Website is an ongoing project whose aim is to provide well-documented simulation results for a variety of … more

Terahertz Bi-Directional Reflection Function Measurements for Homeland Security
Last Updated Date: 04/09/2014

Far-infrared (Terahertz or THz, 25 to 300 micron wavelength) femtosecond laser methods are employed to generate high power broadband pulses for … more

Test and Evaluation Protocols for ANSI/IEEE N42 Standards
Last Updated Date: 03/25/2014

The purpose of these test and evaluation protocols is to provide additional information to the published ANSI/IEEE N42 series for homeland … more

Terahertz Imaging and Sources
Last Updated Date: 03/24/2014

Imaging in the terahertz frequency range enables the detection of concealed weapons and other contraband (e.g., explosives under clothing) without … more

Single Photonics and Quantum Information
Last Updated Date: 03/24/2014

Quantum-based communication and measurement systems that use novel quantum states of light are being developed around the world. However, the … more

Nanostructure Fabrication and Metrology
Last Updated Date: 03/24/2014

Single photons are the fundamental particles for all optical measurements. Single photon detectors made from avalanche photodiodes or … more

Optoelectrical Characterization of Nanostructured Photovoltaic Materials and Devices
Last Updated Date: 03/24/2014

Photovoltaics technology is usually categorized into three generations: 1) devices based on polysilicon; 2) devices based on thin-film direct … more

Quantum Information and Measurements
Last Updated Date: 03/21/2014

America's future prosperity and security may rely in part on the exotic properties of quantum mechanics. Research on quantum information (QI) … more

Solid-state lighting metrology
Last Updated Date: 01/14/2014

With the rise of new, energy-efficient solid-state lighting (SSL) systems has come the need for new performance metrics and measurement methods to … more

Radioactivity Standard Reference Material Program
Last Updated Date: 12/27/2013

The Standard Reference Materials Program of the National Institute of Standards and Technology (NIST) provides science, industry, and government … more

Evolution of Image Spatial Resolution
Last Updated Date: 12/26/2013

Measuring the through-plane water content in a hydrogen fuel cell is critical to understanding this complicated heat and mass transport … more

Precision Measurement Grants Program
Last Updated Date: 12/05/2013

Since 1970, the National Institute of Standards and Technology (NIST) has awarded Precision Measurement Grants to faculty members of U.S. … more

Laser Radiometry
Last Updated Date: 10/29/2013

Accurate characterization of optoelectronic equipment is important to applications such as optical telecommunications, medical devices, materials … more

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