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Displaying 1626 - 1650 of 4634

Frequency Ratio Measurements with 18-Digit Accuracy Using a Network of Optical Clocks

March 24, 2021
Author(s)
Kyle Beloy, Martha I. Bodine, Tobias B. Bothwell, Samuel M. Brewer, Sarah L. Bromley, Jwo-Sy Chen, Jean-Daniel Deschenes, Scott Diddams, Robert J. Fasano, Tara Fortier, Youssef Hassan, David Hume, Dhruv Kedar, Colin J. Kennedy, Isaac Kader, Amanda Koepke, David Leibrandt, Holly Leopardi, Andrew Ludlow, Will McGrew, William Milner, Daniele Nicolodi, Eric Oelker, Tom Parker, John M. Robinson, Stefania Romisch, Stefan A. Schaeffer, Jeffrey Sherman, Laura Sinclair, Lindsay I. Sonderhouse, William C. Swann, Jian Yao, Jun Ye, Xiaogang Zhang
… transfer, optical lattice, optical network, trapped ion …

Sr Lattice Clock at 1 x 10 -16 Fractional Uncertainty by Remote Optical Evaluation with a Ca clock

March 28, 2008
Author(s)
A D. Ludlow, T Zelevinsky, G K. Campbell, S Blatt, M M. Boyd, M de Miranda, M J. Martin, S M. Foreman, J Ye, Tara M. Fortier, Jason Stalnaker, Scott A. Diddams, Yann LeCoq, Zeb Barber, Nicola Poli, Nathan D. Lemke, K. Beck, Christopher W. Oates
… for large ensembles of atoms approaching that of the best ion systems. Rigorous evaluation of high performance clocks …

Ratchet Loading and Multi-Ensemble Operation in an Optical Lattice Clock

August 8, 2024
Author(s)
Youssef Hassan, Takumi Kobayashi, Tobias Bothwell, Jacob Siegel, Benjamin Hunt, Kyle Beloy, Kurt Gibble, Tanner Grogan, Andrew Ludlow
… combination of spatial manipulation of the magneto-optical trap and atomic population shelving to a metastable state. We … Ultra-cold atoms, Magneto-Optical trap, Optical lattice, Atomic clock, Multi-ensemble, Atomic …

Cross Sections for Ionization of Mo and Mo+ by Electron Impact

October 12, 2021
Author(s)
D H. Kwon, Y J. Rhee, Yong Sik Kim
… electron-impact ionization of the neutral Mo Atom and Mo+ ion are reported. Both Mo and Mo+ have many metastable levels … electron impact ionization, molybdenum, molybdenum ion …

Rapid Production of ^87^Rb BECs in a Combined Magnetic and Optical Potential

August 31, 2009
Author(s)
Yu-Ju Lin, Abigail R. Perry, Robert L. Compton, Ian B. Spielman, James V. Porto
… condensates. It is based on a magnetic quadrupole trap and a red detuned optical dipole trap. We collect atoms in a magneto-optical trap (MOT) and then capture the atom in a magnetic quadrupole …

A New Optical Tweezers Technique Using a Holographic Crystal

February 1, 2004
Author(s)
E Edgu-Fry, Kristian Helmerson, Joseph E. Reiner, Rani B. Kishore
… pressure from a highly focused beam can be used to trap and manipulate objects in an aqueous media [1]. Over the … by realizing several traps as opposed to a single trap. There are mainly two approaches that stand out in these … three dimensions, but they cannot adjust the power of each trap individually.Our goal is to combine these two important …

Fast Sodium Ionic Conduction in Na 2 B 10 H 10 -Na 2 B 12 H 12 Pseudo-Binary Complex Hydride and Application to a Bulk-Type All-Solid-State Battery

March 6, 2017
Author(s)
Koji Yoshida, Toyoto Sato, Atsushi Unemoto, Motoaki Matsuo, Tamio Ikeshoji, Terrence J. Udovic, Shin-Ichi Orimo
… In the present work, we developed highly ion-conductive Na 2 B 10 H 10- Na 2 B 12 H 12 closo-borane … mixtures displayed the partial stabilization of highly ion-conductive, disordered cubic phases at room temperature, … than either pure material. An all-solid-state sodium ion battery with a closo-borane-mixture electrolyte …

Mott Scattering Measurements of the Spin Polarization of the NBS GaAs Electron Source

April 6, 1987
Author(s)
Jabez J. McClelland, B Waclawski
… 4) Conclusions (3) is based on an absolute value for S gold of 0.39 at 100kV, 120° scattering angle, as used by the … Double scattering experiments have yielded a value for S gold of 0.370 plus or minus} 0.008. This value for S gold was used to determine the absolute source polarization. …

Automated Mechanical Exfoliation of MoS2 and MoTe2 Layers for 2D Materials Applications

September 13, 2019
Author(s)
Albert Davydov, Sergiy Krylyuk, Kyle J. DiCamillo, Makarand Paranjape, Wendy Shi
An automated technique is presented for mechanically exfoliating single-layer and few-layer transition metal dichalcogenides using controlled shear and normal forces imposed by a parallel plate rheometer. A thin sample that is removed from bulk MoS2 or

Physicochemical Evaluation of Bioactive Polymeric Composites Based on Hybrid Amorphous Calcium Phosphates

August 1, 2000
Author(s)
Joseph M. Antonucci, Drago Skrtic, A W. Hailer, E D. Eanes
… without compromising their calcium and phosphate ion release. The synthesis of these hybrid ACP fillers was … in the polymerized composites. Consequently, mineral ion release from such composites was not adversely affected … bioactive, calcium phosphates, composites, hybrid fillers, ion release, polymers, remineralization, strength, Dentistry …

Suppression of Fatigue Cracking With Nanometer-Scale Multilayered Coatings

August 1, 2000
Author(s)
Mark R. Stoudt, R C. Cammarata, Richard E. Ricker
(Scripta Materialia doesn't use an Abstract -- Took 1st sentence of Intro) Fatigue crack initiation in initally smooth samples of ductile metals free of surface defects almost always occurs at the free surface a sa result of surface rioughening and the
Displaying 1626 - 1650 of 4634
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