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Displaying 826 - 850 of 4633

Creation of a six-atom Schrodinger cat state

December 1, 2005
Author(s)
Dietrich G. Leibfried, Emanuel H. Knill, Signe Seidelin, Joseph W. Britton, Brad R. Blakestad, J Chiaverini, David Hume, Wayne M. Itano, John D. Jost, C. Langer, R Ozeri, Rainer Reichle, David J. Wineland
… is defined by two hyperfine ground states of a beryllium ion, with the cat state corresponding to an entangled equal …

Effects of Lateral Plate Dimensions on Acoustic Emission Signals From Dipole Sources

December 1, 2001
Author(s)
Marvin A. Hamstad, Agnes O'Gallagher, John M. Gary
… of acoustic emission (AE) were calculated in aluminum plate samples of two different lateral dimensions. Both … were calculated for positions of the receiver on the top plate surface at several different distances (in the … types that were located at different depths within the plate thickness. Analysis of the simulated AE signals shows …

The Development and Characterization of an Absolute Pyrometer Calibrated for Radiance Responsivity

September 1, 2003
Author(s)
David W. Allen, Robert D. Saunders, Bettye C. Johnson, Charles E. Gibson, Howard W. Yoon
… rely upon spectral radiance ratios to one of the silver, gold or copper freezing temperature blackbodies and the use … the AP1 are shown using the melt and freeze cycle of the gold-point blackbody. … absolute radiometry, gold freezing temperature, radiance responsivity, …

Hyperfine-mediated electric quadrupole shifts in Al+ and In+ ion clocks

April 6, 2017
Author(s)
Kyle P. Beloy, David R. Leibrandt, Wayne M. Itano
… the averaging schemes that are critical to other optical ion clocks. … aluminum, electric quadrupole moment, indium, ion clock, optical clock, optical frequency standard … electric quadrupole shifts in Al+ and In+ ion clocks …

Absolute Cryogenic Radiometer and Solid State Trap Detectors for IR Power Scales Down to 1 pW with 0.1% Uncertainty

June 2, 2009
Author(s)
Adriaan C. Carter, Solomon I. Woods, Stephen Carr, Timothy M. Jung, Raju V. Datla
… ACR with a combined uncertainty on the order of 1 fW and a trap detector based on arsenic-doped silicon blocked impurity … band detector, IR radiometry, low power calibration, trap detector … Absolute Cryogenic Radiometer and Solid State Trap Detectors for IR Power Scales Down to 1 pW with 0.1% …

Surface-plasmon-enhanced electric fields in two-dimensional arrays of gold nanodisks

August 4, 2008
Author(s)
Ward L. Johnson, Sudook A. Kim, Zhandos Utegulov, B. T. Draine
… Electric-field distributions in two-dimensional arrays of gold nanodisks on Si3N4 membranes are modeled, using the … primary focus is on fields in a plane near the circular gold/vacuum interface with light of 532 nm wavelength … electric fields in two-dimensional arrays of gold nanodisks …

Maximizing Information Obtained From Secondary Ion Mass Spectra of Organic Thin Films Using Multivariate Analysis.

July 1, 2004
Author(s)
M S. Wagner, D G. Graham, B D. Ratner, David G. Castner
… Time -of Flight Secondary Ion Mass Spectrometry (ToF-SIMS) can give detailed … molecular depth profiles obtained using an SF 5u+ primary ion beam. The effect of data normalization and scaling on the … Maximizing Information Obtained From Secondary Ion Mass Spectra of Organic Thin Films Using Multivariate …

Effect of a Water Rinse on Labile Fluoride and Ether Ions in Plaque and Saliva Before and After Conventional and Experimental Fluoride Rinses

March 1, 2001
Author(s)
Gerald L. Vogel, Z Zhang, Laurence C. Chow, Gary E. Schumacher
… apparently due to water induced loss of calcium binding ions. Water- or fluoride-rinse-induced changes in plaque … caries, fluoride, labile ions, plaque, saliva … Effect of a Water Rinse on Labile Fluoride and Ether Ions in Plaque and Saliva Before and After Conventional and …

Genetically Engineered Metal Ion Binding Sites on the Outside of a Channel's Transmembrane B-Barrel

February 1, 1999
Author(s)
John J. Kasianowicz, D L. Burden, L C. Han, S Cheley, H Bayley
… engineered versions of the Staphlococcus aureus αHL} ion channel to serve as rationally designed sensor components … alpha-hemolysin, alpha-toxin, biosensor, divalent cations, ion channels, protein structure, transition metals … Genetically Engineered Metal Ion Binding Sites on the Outside of a Channel's Transmembrane …

Long-Lived Qubit Memory Using Atomic Ions

August 5, 2005
Author(s)
C. Langer, R Ozeri, John D. Jost, J Chiaverini, B. L. DeMarco, A. Ben-Kish, Brad R. Blakestad, Joseph W. Britton, David Hume, Wayne M. Itano, Dietrich G. Leibfried, Rainer Reichle, Till P. Rosenband, Tobias Schaetz, Piet Schmidt, David J. Wineland
… quantum superpositions, quantum-state engineering, trapped ions … Long-Lived Qubit Memory Using Atomic Ions …

Chained Bell inequality experiment with high-efficiency measurements

March 28, 2017
Author(s)
Ting Rei Tan, Stephen D. Erickson, Peter L. Bierhorst, Daniel Kienzler, Scott C. Glancy, Emanuel H. Knill, Dietrich G. Leibfried, David J. Wineland, Yong Wan
We report correlation measurements on two 9Be+ ions that violate a chained Bell inequality obeyed by any local-realistic theory. The correlations can be modeled as derived from a mixture of a local-realistic probabilistic distribution and a distribution

K X-Rays Produced in Collisions of Bare Ions With Atoms Contribution of Multiple-Electron Transfer in Kr 36+ , Ar 18+ , and Ne 10+ + Ar Collisions

January 1, 2006
Author(s)
H Tawara, E Takacs, T Suta, K Makonyi, L P. Ratliff, John D. Gillaspy
… observed in low energy collisions of bare Kr, Ar, and Ne ions ion with neutral gas targets. Although largely … collisions, highly charged ions, hyper-satellite lines, satellite lines, x-ray … K X-Rays Produced in Collisions of Bare Ions With Atoms Contribution of Multiple-Electron Transfer in …

Trap-Imbalanced Fermion Mixtures

January 7, 2008
Author(s)
Menderes Iskin, Carl J. Williams
… phases of two-component population- andmass-balanced but trap-imbalanced fermion mixtures as a function of … Trap-Imbalanced Fermion Mixtures …

Optical Asymmetry and Nonlinear Light Scattering from Gold Nanorods

May 16, 2017
Author(s)
Andrew Herzing
… intensity-dependent nonlinear light scattering spectra of gold nanorods under resonant excitation of the longitudinal … primarily from interband optical transitions in the gold. A detailed study of the spectral dependence of the … Optical Asymmetry and Nonlinear Light Scattering from Gold Nanorods …

Identification of Active Sites of Biomolecules II: Saccharide and Transition Metal ion in Aqueous Solution

February 23, 2009
Author(s)
Orkid Coskuner, Denis E. Bergeron, Luis C. Rincon, Jeffrey W. Hudgens, Carlos A. Gonzalez
… dynamics (CPMD) simulations find that a single FeIII ion interacts with specific hydroxyl groups of the saccharide … in aqueous solution. Specifically, we find that one FeIII ion complexed to methyl-a-mannopyranoside also associates … ionization mass spectrometry measurements involving guided ion beam hydration measurements, which reveal an optimal …

The Role of High-Field Stress in the Negative Bias Temperature Instability

December 1, 2010
Author(s)
Jason P. Campbell, Kin P. Cheung, John S. Suehle, A Oates
In this study, a fast drain current measurement methodology which supports the standard threshold voltage and transconductance extractions associated with the fast dynamic negative-bias temperature instability (NBTI) is presented. Using this methodology

Reduced Photoconductivity Observed by Time-Resolved Terahertz Spectroscopy in Metal Nanofilms with and without Adhesion Layers

May 29, 2016
Author(s)
Brian Alberding, Edwin J. Heilweil, Gary P. Kushto, Paul A. Lane
… on fused quartz substrates. Samples of 8 nm thick gold or titanium show an instrument-limited decrease in … carrier scattering. In contrast, for samples of 8 nm gold with a 4 nm adhesion layer of titanium or chromium, a … materials. The results also suggest nanoscale gold films that utilize an adhesion material do not consist …
Displaying 826 - 850 of 4633
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