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Physics Programs & Projects

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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

Photovoltaic Carrier Dynamics Measured by Time-Resolved Terahertz Spectroscopy
Last Updated Date: 04/09/2014

Far-infrared (or THz, 25 to 300 micron wavelength) femtosecond laser methods are employed to measure photovoltaic (PV) materials spectra and … 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

Hydrogen Generation in Di-Iron Hydrogenase Mimics
Last Updated Date: 04/02/2014

Discovery of novel materials to facilitate hydrogen gas production has prompted new avenues of research towards developing hydrogen as an … more

Far-infrared Spectroscopy of Biomolecules
Last Updated Date: 04/02/2014

Far-infrared (or terahertz/THz, ca. 25 to 300 micron wavelength) femtosecond pulsed laser and Fourier-transform infrared methods are employed to … 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

CODATA values of the fundamental constants
Last Updated Date: 01/31/2014

Every four years, the Committee on Data for Science and Technology (CODATA) issues recommended values of the fundamental physical constants. The … 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

Photometry
Last Updated Date: 01/08/2014

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

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