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Displaying 16426 - 16450 of 74115

Clearing the fog for best in the world air-wavelength

July 1, 2015
Author(s)
Patrick F. Egan, Jack A. Stone Jr.
Laser interferometry, the basis for modern length metrology, achieves very high accuracies as a consequence of the stable, well-known frequencies of laser sources. However, length measurements in air also require corrections based on precise knowledge of

Development of traceable measurement of the diffuse optical properties of solid reference standards for biomedical optics at the National Institute of Standards and Technology

July 1, 2015
Author(s)
David W. Allen, Paul Lemaillet, Jean-Pierre Bouchard
The development of a national reference instrument dedicated to the measurement of the scattering and absorption properties of solid tissue-mimicking phantoms used as reference standards is presented. The optical properties of the phantoms are measured

Fiber Optic Graphene Sensors for Dynamic Pressure Measurements.

July 1, 2015
Author(s)
Douglas A. Olson, Kevin O. Douglass, Miao Yu, Haijun H. Liu
We have constructed a fiber optical sensor using graphene with four monolayers that demonstrates similar performance to a traditional high-precision acoustic pressure sensor.

Revision of the NIST Standard for 223Ra: New Measurements and Review of 2008 Data

July 1, 2015
Author(s)
Denis E. Bergeron, Jeffrey T. Cessna, Leticia S. Pibida
After discovering a discrepancy in the transfer standard currently being disseminated by the National Institute of Standards and Technology (NIST), we have performed a new primary standardization of the alpha-emitter 223Ra using Live-timed Anticoincidence

Scanning electron microscope measurement of width and shape of 10 nm patterned lines using a JMONSEL-modeled library

July 1, 2015
Author(s)
John S. Villarrubia, Andras Vladar, Bin Ming, Regis J. Kline, Daniel F. Sunday, Jasmeet Chawla, Scott List
The width and shape of 10 nm to 12 nm wide lithographically patterned SiO2 lines were measured in the scanning electron microscope by fitting the measured intensity vs. position to a physics-based model in which the lines’ widths and shapes are parameters
Displaying 16426 - 16450 of 74115