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NIST Authors in Bold

Displaying 476 - 500 of 4633

Measuring the Neutron Lifetime Using Magnetically Trapped Neutrons

May 1, 2014
Author(s)
Hans P. Mumm, Alan Keith Thompson, Paul R. Huffman, Christopher O'Shaughnessy, Kevin J. Coakley, Robert Golub, John M. Doyle, Steve K. Lamoreaux, P.-N. Seo, C E. Mattoni, S N. Dzhosyuk, L Yang, Grace L. Yang, Karl W. Schelhammer, Christopher M. Swank
… < 200 neV, and those in the appropriate spin state become trapped. The inverse process is suppressed by the low phonon … strength and trap volume resulting in twenty times more trapped neutrons. … Measuring the Neutron Lifetime Using Magnetically Trapped Neutrons …

Secondary Ion Mass Spectrometry Using Cluster Primary Ion Beams

January 1, 2003
Author(s)
John G. Gillen, Albert J. Fahey
… for conducting cluster SIMS experiments on both our ion microscope and TOF-SIMS instruments. This paper will review our recent work on cluster ion source development, elemental depth profiling with cluster primary ion beams and the use of cluster ion beams for organic …

Single-atom trapping in a metasurface-lens optical tweezer

August 1, 2022
Author(s)
Ting-Wei Hsu, Wenqi Zhu, Tobias Thiele, Mark Brown, Scott Papp, Amit Agrawal, Cindy Regal
… neutral atoms rely heavily on optical potentials for trapping, either in lattices or tightly-focused laser beams, … aperture (NA) optics are key, for both creating the trapping potentials and imaging fluorescence to resolve … and have been used for creating large-scale cooling and trapping beams [10], but are yet to be explored for the …

Considerations for Quantification of Gold Nanoparticles using Time-of-Flight Secondary Ion Mass Spectrometry on a Biologically Relevant Matrix

May 28, 2020
Author(s)
Shinichiro N. Muramoto, Joe Bennett
… printing for the preparation of test materials containing gold nanoparticles (AuNPs) on a biologically relevant matrix, … discusses the methods of using time-of-flight secondary ion mass spectrometry (ToF-SIMS) for their spatially resolved … Considerations for Quantification of Gold Nanoparticles using Time-of-Flight Secondary Ion Mass …

High Fidelity Universal Gate Set for 9Be+ Ion Qubits

August 4, 2016
Author(s)
John P. Gaebler, Ting R. Tan, Yong Wan, Yiheng Lin, Ryan S. Bowler, Adam C. Keith, Scott Glancy, Kevin Coakley, Emanuel Knill, Dietrich Leibfried, David J. Wineland
… High Fidelity Universal Gate Set for 9Be+ Ion Qubits …

Assessment of Uncertainties for the NIST 1016 mm Guarded-Hot-Plate Apparatus: Extended Analysis for Low-Density Fibrous-Glass Thermal Insulation

February 1, 2010
Author(s)
Robert R. Zarr
… of Standards and Technology (NIST) 1016 mm Guarded-Hot-Plate apparatus is presented. The uncertainties are reported … the measurement process. For the NIST 1016 mm Guarded-Hot-Plate apparatus, considerable improvement, especially at … calibration, fibrous glass blanket, guarded hot plate, thermal conductivity, thermal insulation, uncertainty …

Assessment of Uncertainties for the NIST 1016 mm Guarded-Hot-Plate Apparatus: Extended Analysis for Low-Density Fibrous-Glass Thermal Insulation

February 1, 2009
Author(s)
Robert R. Zarr
… of Standards and Technology (NIST) 1016 mm Guarded-Hot-Plate apparatus is presented. The uncertainties are reported … the measurement process. For the NIST 1016 mm Guarded-Hot-Plate apparatus, considerable improvement, especially at … calibration, fibrous glass blanket, guarded hot plate, thermal conductivity, thermal insulation, uncertainty …

Early observations of macroscopic quantum jumps in single atoms

March 25, 2015
Author(s)
Wayne M. Itano, James C. Bergquist, David J. Wineland
… of intermittent fluorescence of a single atomic ion, a phenomenon better known as 'macroscopic quantum … application of the three-dimensional rf quadrupole (Paul) trap. The prediction of the phenomenon by Cook and Kimble … in the laser-induced fluorescence of a single Hg + ion by a group at the National Institute of Standards and …

MOTIS: A Focused Ion Beam Source Based On Laser-Cooled Atoms

November 10, 2011
Author(s)
Brenton J. Knuffman, Adam V. Steele, Jon Orloff, Mostafa Maazouz, Jabez J. McClelland
… MOTIS: A Focused Ion Beam Source Based On Laser-Cooled Atoms … Focused ion beam, ion microscopy, laser cooling. … MOTIS: A Focused Ion Beam Source Based On Laser-Cooled Atoms …

In Situ Imaging of Highly Charged Ion Irradiated Mica

January 1, 2001
Author(s)
L P. Ratliff, John D. Gillaspy
… surfaces due to the impact of Xe44+ ions by imaging the ion-exposed surfaces with atomic force microscopy in vacuum. … AFM, highly charged ion, mica … In Situ Imaging of Highly Charged Ion Irradiated Mica …

Studies of Ion Bombardment in High Density Plasmas Containing CF 4

July 1, 1999
Author(s)
James K. Olthoff, Yicheng Wang
… We report ion energy distributions, relative ion intensities, and absolute total ion current densities at the grounded electrode of an … plasmas, etching plasmas, inductively coupled plasmas, ion energy distributions, ion flux … Studies of Ion Bombardment in High Density Plasmas Containing CF 4 …

Manipulation of magnetic particles by patterned arrays of magnetic spin-valve traps

December 20, 2006
Author(s)
Elizabeth Mirowksi, John M. Moreland, Stephen E. Russek, Michael J. Donahue
… states. The switchable fringing fields near the spin-valve traps can be used to selectively confine or release particles for transport or sorting. Spin-valve traps may be potentially used as magnetic molecular tweezers … magnetic traps, magnetic tweezers, microfluidics, single molecule, …

Generation of Non-Classical Motional States of a Trapped Atom

January 1, 1996
Author(s)
D M. Meekhof, C Monroe, B E. King, Wayne M. Itano, David J. Wineland
… laser cooled to the zero point of motion. The ion is trapped in the regime where the coupling between its motional … Generation of Non-Classical Motional States of a Trapped Atom …
Displaying 476 - 500 of 4633
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