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Physics Programs & Projects

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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

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

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

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

Improved quantitative medical CT imaging
Last Updated Date: 10/03/2011

Develop precision calibration standards for accurate determination of feature sizes in computed tomography images, to improve reliability of … more

OOF: Finite Element Analysis of Microstructures
Last Updated Date: 02/17/2011

The OOF project seeks to provide flexible software for finite-element modeling the behavior of real microstructures, with meshes derived from … more

NIST Calibrations of a Miniature X-Ray Source Used for Electronic Brachytherapy
Last Updated Date: 11/18/2010

A new laboratory dedicated to establishing a national primary air-kerma rate standard for Xoft's AXXENT™ miniature x-ray source has been fabricated more

Advanced Linear and Nonlinear Optical Metrology in support of next-generation Lithography
Last Updated Date: 11/09/2010

High precision linear and nonlinear optics of next-generation lithographic techniques is measured and characterized to enable these technologies. more

Fabry-Perot displacement interferometry
Last Updated Date: 10/20/2010

High-resolution Fabry-Perot interferometry is being developed and employed for mechanical displacement metrology, linking optical measurements to … more

Fabrication and Metrology of Novel Magnetic Tunnel Junctions in the Ultra-thin Barrier Limit
Last Updated Date: 10/20/2010

Magnetic tunnel junctions, nanostructured by highly charged ions, are being probed and characterized to establish the foundation for novel … more

Atomic Wavefunctions
Last Updated Date: 10/05/2010

NIST scientists are actively developing new algorithms for extremely high-accuracy computation of non-relativistic eigenstates of … more

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