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NIST Authors in Bold

Displaying 2876 - 2900 of 4637

Nanosilver suppresses growth and induces oxidative damage to DNA in Caenorhabditis elegans

May 2, 2013
Author(s)
Bryant C. Nelson, Bryce J. Marquis, Piper R. Hunt, Katherine M. Tyner, Sean Conklin, Nicholas Olejnik, Robert L. Sprando
The utility of C. elegans as an alternative model to assess nanomaterial toxicity was evaluated using 10 nm silver particles (10nmAg). Endpoints of nanomaterial uptake and localization, larval growth, morphology, and DNA damage were assessed. Orally

Optical-Fiber Power Meter Comparison between NIST and KRISS

December 21, 2012
Author(s)
Seungkwan Kim, Keesuk Hong, Dong-Hoon Lee, David J. Livigni, Xiaoyu X. Li, John H. Lehman
… standards by means of a temperature-controlled optical trap detector. Measurement results showed the largest …

Quantum Gates Using Motional States in an Optical Lattice

June 1, 2001
Author(s)
E Charron, Eite Tiesinga, F H. Mies, Carl J. Williams
We Study an implementation of a two-qubit universal quantum gate with neutral 87Rb atoms trapped in a far-detuned two-color optical lattice. The qubit states and represent the ground and first excited motional states of an atom in a laser induced potential

Coherence Properties of an Atom Laser

January 1, 2000
Author(s)
M Trippenbach, Y B. Band, M Edwards, M R. Doery, Paul S. Julienne, Edward W. Hagley, Lu Deng, M M. Kozuma, Kristian Helmerson, S L. Rolston, William D. Phillips
We study the coherence properties of an atom laser, which operates by extracting atoms from a gaseous Bose-Einstein condensate via a two-photon Raman process, by analyzing a recent experiment [(Hagley et al., submitted to Phys. Rev. Lett. (1999)]. We

An Improved Fast I d -V ^d g Measurement Technology With Expanded Application Range

October 19, 2009
Author(s)
Chen Wang, Liangchun (. Yu, Jason P. Campbell, Kin P. Cheung, Yi Xuan, Peide Ye, John S. Suehle, David Zhang
Fast Id-Vg measurements on very high performance devices (very low channel ON-resistance) and larger area devices (therefore large gate capacitance) are subject to serious distortions. Methods to minimize these distortions are introduced in this paper

Long-term Stability of NIST Chip-Scale Atomic Clock Physics Packages

December 5, 2006
Author(s)
Svenja A. Knappe, V Shah, Vladislav Gerginov, Alan Brannon, Leo W. Hollberg, John E. Kitching
We present measurements regarding the long-term frequency instability of NIST CSAC physics packages. Changes of the clock frequency are caused mainly through time-dependent light shifts by the frequency-modulated VCSEL and properties of the vapor cell. We

Component-Level Demonstration of a Microfabricated Atomic Frequency Reference

August 29, 2005
Author(s)
Vladislav Gerginov, Svenja A. Knappe, P Schwindt, V Shah, Li-Anne Liew, John Moreland, Hugh Robinson, Leo W. Hollberg, John E. Kitching, Alan Brannon, J Breitbarth, Z Popovic
We demonstrate component-level functionality of the three critical subsystems for a chip-scale atomic clock: the physics package, the local oscillator and the control electronics. In addition, we demonstrate that these three components functioning together

Microfabricated atomic frequency references

June 7, 2005
Author(s)
John E. Kitching, Svenja A. Knappe, Li-Anne Liew, John Moreland, P Schwindt, V Shah, Vladislav Gerginov, Leo W. Hollberg
Using microfabrication processes, we have been able to construct physics packages for vapour cell atomic frequency references 100¿ smaller than previously existing versions, with a corresponding reduction in power consumption. In addition, the devices

Microfabricated Atomic Clocks

January 1, 2005
Author(s)
John E. Kitching, Svenja A. Knappe, Li-Anne Liew, P Schwindt, V Shah, John M. Moreland, Leo W. Hollberg
We describe recent progress at NIST in the development of compact, low-power atomic frequency references based on microfabrication processes. The physics packages of these frequency references have a volume near 10 cm 3, require less than 100 mW of power

Near-Threshold Photoassociation of 87 Rb 2

February 1, 2004
Author(s)
M Kemmann, R Mistrik, S Nussmann, H Helm, Carl J. Williams, Paul S. Julienne
… magneto-optical trap, photoassociation spectrum, ultra-cold atom, vibrational …
Displaying 2876 - 2900 of 4637
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