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Displaying records 551 to 560 of 733 records.
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551. Replicating UTC(NIST) at Remote Sites
Topic: Physics
Published: 11/26/2012
Authors: Michael A Lombardi, Andrew N Novick, J. Mauricio Lopez-Romero, Rodrigo Ramos
Abstract: The National Institute of Standards and Technology (NIST) is deploying disciplined oscillators that are referenced to the UTC(NIST) time scale through common-view observations of Global Positioning System (GPS) satellites. We present measurement res ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912711

552. Reply to "Comment on: 'Ultrafast Demagnetization Measurements Using Extreme Ultraviolet Light: Comparison of Electronic and Magnetic Contributions'Š
Topic: Physics
Published: 9/4/2013
Authors: Justin M Shaw, Thomas J Silva, Hans Toya Nembach, Emrah Turgut, Patrik Grychtol, Chan La-O-Vorakiat, Henry Kapteyn, Margaret M. Murnane, Stefan Mathias, Martin Aeschlimann, Claus Schneider, Daniel E. Adams
Abstract: In the following, we show that the conclusions of our article titled "Ultrafast Demagnetization Measurements Using Extreme Ultraviolet Light: Comparison of Electronic and Magnetic Contributions" are correct. The Comment of Vodungbo {I}et al.{/I} arg ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913783

553. Report of Special Nuclear Material Validation Measurements for Backpack Type Radiation Detectors
Series: Technical Note (NIST TN)
Report Number: 1808
Topic: Physics
Published: 8/19/2013
Authors: Leticia S Pibida, Christina Ward
Abstract: This report provides results and recommendations from the validation testing for the different source configurations and radiation fields produced by special nuclear materials (SNMs) and depleted uranium (DU) listed within the Technical Capabilit ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914345

554. Residual PM Noise Evaluation of Radio Frequency Mixers
Topic: Physics
Published: 7/31/2011
Authors: Corey Andrew Barnes, Archita Hati, Craig W Nelson, David Allan Howe
Abstract: Direct observation of phase modulated (PM) noise is often difficult due to the high dynamic range that exists between the carrier and the modulated sidebands. A common tool used to reduce the dynamic range is the phase detector, which removes the ca ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908656

555. Response to the Commentary by J.F. Ziegler
Topic: Physics
Published: 1/1/2001
Authors: Stephen Michael Seltzer, M Inokuti, H Paul, H Bichsel
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=103337

556. Robust Optical Design of Angled Multilayer Dielectric Mirrors Optimized for Rubidium Vapor Cell Return Reflection
Topic: Physics
Published: 8/1/2008
Authors: M A Perez, John E Kitching, A Shkel
Abstract: This paper reports on the design and implementation of thin film multilayer dielectric reflectors on the sidewalls of micromachined reflector cells. Due to shadowing within the cavity, significant variations in the thicknesses of the thin films will ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842429

557. Rotating-radio-frequency ion traps
Topic: Physics
Published: 10/20/2005
Authors: T Hasegawa, John J Bollinger
Abstract: We propose a new ion trap, the rotating-rf trap, in which motion of a charged particle is described not by Mathieu-type functions but by trigonometric functions. In the rotating-rf trap, a quadrupole electric field confines charged particles, whereas ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=50171

558. Rubidium Vapor Cell with Integrated Bragg Reflectors for Compact Atomic MEMS
Topic: Physics
Published: 6/9/2009
Authors: Maximillian Perez, Uyen Nguyen, Svenja A Knappe, Elizabeth A Donley, John E Kitching, A Shkel
Abstract: This paper reports on a method for improving the optical efficiency of micro-machined reflectors integrated in rubidium vapor cells for application in atomic MEMS sensors. A hybrid bulk micromachining and multilayer PECVD thin film process is used to ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842465

559. SEM Induced Shrinking of Solid State Nanopores for Single Molecule Detection
Topic: Physics
Published: 9/22/2011
Authors: Anmiv Prahbu, Kevin J Freedman, Joseph William Robertson, Zhorro Nikolov, John J Kasianowicz, MinJun Kim
Abstract: We have investigated the shrinkage of solid state nanopores by a scanning electron microscope and find the process to be reproducible and dependant beam parameters such as the accelerating voltage and electron flux. The shrinking phenomenon does ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907430

560. SIM time scales
Topic: Physics
Published: 10/27/2010
Authors: Michael A Lombardi, J. Mauricio Lopez-Romero, Nelida Diaz-Munoz
Abstract: This paper presents an analysis of the performance of some of the time scales generated in the Sistema Interamericano de Metrologia (SIM) region. We emphasize the generation of the first international time scale in near real time, the SIM Time scale ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906268



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