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Physics Programs & Projects

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X-ray Detection with Large Area Avalanche Photodiodes for the Neutron Radiative Decay Experiment
Last Updated Date: 07/21/2015

Operation of the second neutron radiative decay experiment has been completed. In this experiment we observed the emission of photons that … more

Continuous Spin-Exchange Optical Pumping in High Flux Neutron Beams
Last Updated Date: 07/21/2015

We collaborated on tests at the Insitut Laue Langevin (ILL) to study the effects of high flux neutron beams on spin-exchange optical pumping … more

Neutron Device Calibrations
Last Updated Date: 07/21/2015

NIST provides the national reference for the calibration of neutron radiation detectors and for neutron personnel dosimeters.  more

Pushing and Understanding the Limits of Spin-Exchange Optical Pumping of He-3
Last Updated Date: 07/21/2015

Neutron spin filters based on polarized 3He rely on the strong spin dependence of the absorption of neutrons by 3He gas.

Neutron Source Strength Calibrations
Last Updated Date: 07/21/2015

The neutron source calibration facility operated by NIST is a world-class calibration laboratory providing neutron source calibration services for … more

Neutron Cross Section Standards
Last Updated Date: 07/21/2015

NIST continues to be deeply involved with measurements and evaluations of neutron cross section standards. NIST maintains a limited experimental … more

Nanoplasmonics and Three-Dimensional Plasmonic Metamaterials
Last Updated Date: 07/20/2015

Metamaterials are tailor-made photonic composites--combinations of materials designed to achieve optical properties not seen in nature. The … more

Measuring Light-Matter Interactions in Chip-Based Optical Cavities
Last Updated Date: 07/20/2015

Measuring interactions between light and matter has both fundamental and practical importance. For example, lasers have had a profound influence … more

Nanotribology for Nanomanufacturing (Archived)
Last Updated Date: 07/20/2015

Tribology is the science and technology of interacting surfaces in relative motion and includes studies of friction, adhesion, lubrication, and … more

Californium Neutron Irradiation Facility
Last Updated Date: 07/16/2015

NIST maintains the Californium Neutron Irradiation Facility (CNIF), which is an exposure facility providing fast neutrons for irradiations … more

Femtosecond Laser Frequency Combs for Optical Clocks
Last Updated Date: 07/15/2015

We develop self-referenced mode-locked femtosecond lasers that function as the "gears" of optical clocks. The femtosecond laser clockwork is … more

Yb Lattice Clock
Last Updated Date: 07/15/2015

Our Group is developing high stability, high accuracy optical atomic clocks based on thousands of Yb atoms confined to an optical lattice. Such … more

Si-Based Single Spin Coherence and Manipulation
Last Updated Date: 07/15/2015

We are characterizing Si-based single-electron quantum dots at low temperatures (down to 10 mK) to explore the possibility of quantum coherent … more

Silicon-based single electron current standards
Last Updated Date: 07/15/2015

We are working to fabricate and perform low-temperature measurements of CMOS-compatible single electron devices in silicon which could be used as … more

Modeling and Simulation of Nanofabrication (Archived)
Last Updated Date: 07/15/2015

Most manufacturing has historically been based on top-down fabrication and assembly. With rapid advances in nanotechnology, there is increasing … more

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