Physics Programs & Projects | |
|
CODATA values of the fundamental constants
Last Updated Date: 05/30/2012 Every four years, the Committee on Data for Science and Technology (CODATA) issues recommended values of the fundamental physical constants. The … more
Laser Radiometry
Last Updated Date: 04/18/2012 Accurate characterization of optoelectronic equipment is important to applications such as optical telecommunications, medical devices, materials … more
Spectrophotometry
Last Updated Date: 04/02/2012 Spectrophotometry is the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength. While … more
Modeling and Simulation of Nanofabrication
Last Updated Date: 03/09/2012 Most manufacturing has historically been based on top-down fabrication and assembly. With rapid advances in nanotechnology, there is … more
Spectroradiometry of sources
Last Updated Date: 12/15/2011 Calibration standards for spectral radiance and spectral irradiance are disseminated in the form of transfer lamps and integrating sphere sources. … more
Molecular spectroscopy
Last Updated Date: 12/15/2011 The molecular spectroscopy sub-group carries out vibrational and rotational spectroscopic analyses on experimental data obtained primarily in the … more
Optical medical imaging
Last Updated Date: 12/15/2011 The Optical Medical Imaging program was established to advance the application of optical imaging in surgical, clinical, and medical practices. … more
Single Photonics and Quantum Information
Last Updated Date: 12/15/2011 Quantum-based communication and measurement systems that use novel quantum states of light are being developed around the world. However, the … more
Ultracold atoms and molecules
Last Updated Date: 12/08/2011 Theory for ultracold atomic and molecular collisions and interactions is being developed and exploited to gain precise control over these … more
Nanostructure Fabrication and Metrology
Last Updated Date: 11/07/2011 Single photons are the fundamental particles for all optical measurements. Single photon detectors made from avalanche photodiodes or … more
Aperture area measurements
Last Updated Date: 11/03/2011 Radiometric and photometric measurements require defining apertures. The accuracy to which these measurements can be accomplished requires … more
Optical Trapping of Gold Nanoshells Near Resonance
Last Updated Date: 10/04/2011 We explore the enhancement of optical trapping forces arising from optical confinement near resonance adsorption. Gold nanoshells, particles with … more
Nonlinear Optics and Non-classical Light
Last Updated Date: 10/04/2011 Nonlinear optics provides a way to generate light with different frequencies and different quantum statistical properties. We have developed a … more
Multi-Photon Laser Cooling
Last Updated Date: 10/04/2011 Laser cooling of atoms is a powerful and widely used tool in atomic physics. Traditional laser cooling relies primarily on the mechanical effect of … more
Spinor Condensates and Ultracold Collisions
Last Updated Date: 10/04/2011 Interactions between cold atoms can provide us with the means to manipulate matter on the smallest scales. Collisions between laser-cooled atoms, … more |
Contact
General Information:301-975-NIST (6478) inquiries@nist.gov 100 Bureau Drive, Stop 1070 Gaithersburg, MD 20899-1070 |