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Search Publications

NIST Authors in Bold

Displaying 351 - 375 of 4633

Surface-plasmon enhancement of Brillouin light scattering from gold-nanodisk arrays on glass

January 1, 2007
Author(s)
Zhandos Utegulov, B. T. Draine, Sudook A. Kim, J. M. Shaw, Ward L. Johnson
… boro-aluminosilicate glass covered with periodic arrays of gold nanodisks. This enhancement is larger than that arising from the higher reflectivity of gold relative to glass and is attributed to mediation of … and Sezawa-like modes, relative to the intensity from a gold film with the same fractional coverage area but without …

Citrate-stabilized gold nanoparticles do not impact neural progenitor cell development

January 5, 2015
Author(s)
Kavita M. Jeerage, Tammy L. Oreskovic, Alexandra Curtin, Aric W. Sanders, Rani K. Schwindt, Ann C. Chiaramonti Debay
… Gold nanoparticles are promising candidates for medical … and ease of functionalization. Citrate-stabilized gold nanoparticle reference materials also have potential as … neurological environment. The stability of 30 nm gold particles in a low-serum culture medium was determined …

Exploring the Limits of Bottom-Up Gold Filling to Fabricate Diffraction Gratings

November 27, 2019
Author(s)
Daniel Josell, Stephen J. Ambrozik, Maureen E. Williams, A E. Hollowell, Christian Arrington, Shinichiro Muramoto, Thomas P. Moffat
… Gold deposition on rotating disk electrodes, Bi3+ adsorption … gold, grating, trenches, superfill … Exploring the Limits of Bottom-Up Gold Filling to Fabricate Diffraction Gratings …

Dissipative production of a maximally entangled steady state of two quantum bits

December 19, 2013
Author(s)
John P. Gaebler, Yiheng Lin, Florentin Reiter, Ting Rei Tan, Ryan S. Bowler, Anders Sorensen, Dietrich G. Leibfried, David J. Wineland
Entangled states are a key resource in fundamental quantum physics, quantum cryptography, and quantum computation [1]. To date, controlled unitary interactions applied to a quantum system, so-called "quantum gates'', have been the most widely used method

Hyperfine Coherence in the Presence of Spontaneous Photon Scattering

July 15, 2005
Author(s)
R Ozeri, C. Langer, John D. Jost, B. L. DeMarco, A. Ben-Kish, Brad R. Blakestad, Joseph W. Britton, J Chiaverini, Wayne M. Itano, David Hume, Dietrich G. Leibfried, Till P. Rosenband, Piet Schmidt, David J. Wineland
… of hyperfine-state superpositions of a trapped 9 Be + ion is experimentally studied in the presence of off-resonant …

Highly Stable Positively Charged Dendron-Encapsulated Gold Nanoparticles

March 13, 2014
Author(s)
Tae Joon Cho, Robert I. MacCuspie, Julien C. Gigault, Justin M. Gorham, John T. Elliott, Vincent A. Hackley
… novel cationic dendron (TAG1-PCD) and a positively charged gold nanoparticle-dendron conjugate (PCD-AuNP). TAG1-PCD was … and cationic nature that is required to yield a stable gold conjugate in aqueous media. The PCD-AuNPs were … gold, nanoparticle, dendron, dendrimer, positive charge, …

Optical trapping of selected dielectric microparticles in air

Author(s)
Haesung Park, Thomas W. LeBrun
… A particle may be trapped at the nominal focus of the trapping beam or at a position above the focus (which we … optical levitation, optical trapping, dielectric microparticles, piezoelectric … Optical trapping of selected dielectric microparticles in air …

Tunnel junction sensors for HCI-surface measurements at low kinetic energies

January 25, 2013
Author(s)
Joshua M. Pomeroy, Russell E. Lake
… created by particle surface interactions. Highly charged ion (HCI) produced nanofeatures have been the focus of our … due a direct vacuum connection to the NIST electron beam ion trap (EBIT). Using these sensors, we have been able to make … Highly charged ions, electron beam ion trap, tunnel junction sensors, stopping power …

Observation of a fault tolerance threshold with concatenated codes

December 9, 2025
Author(s)
Grace Sommers, Michael Foss-Feig, David Hayes, David Huse, Michael Gullans
… noise. We implement our state preparation protocol on ion-trap hardware with added noise to demonstrate the threshold … quantum computing, quantum error correction, ion traps …

Sub-Doppler Laser Cooling and Magnetic Trapping of Erbium

November 27, 2007
Author(s)
Andrew J. Berglund, Simone Lee, Jabez J. McClelland
… temperatures below 25 υK. These favorable cooling and trapping properties suggest a number of scientific … laser cooling, magnetic trapping, rare-earth elements … Sub-Doppler Laser Cooling and Magnetic Trapping of Erbium …

High resolution X-ray Spectra of the Time Evolution of Emission from Metastable Electronic States of Highly Charged Ni-like Ions

June 25, 2024
Author(s)
Timothy Burke, Endre Takacs, Dipti Dipti, Adam Hosier, Galen O'Neil, Hunter Staiger, Joseph N. Tan, Aung S. Naing, Joan Marler, Yuri Ralchenko
… Metastable levels of highly charged ions that can only decay via highly forbidden transitions can … 1 2 )J=3 magnetic octupole (M3) transition in nickel-like ions can result in a large metastable population of its upper … to study metastable electronic states in highly charged ions (HCIs) that decay by x-ray emission in electron beam ion …

In Situ Monitoring, Separation, and Characterization of Gold Nanorod Transformation during Seed-Mediated Synthesis

February 12, 2016
Author(s)
Thao M. Nguyen, John M. Pettibone, Julien Gigault, Vincent A. Hackley
… Gold nanorods (GNRs) occupy a unique place in nanotechnology … It has been well established that the nature and size of gold seeds strongly affect the yield, AR, and defect … initial investigation of the synthesis and separation of gold nanomaterials using asymmetric-flow field flow …

Template Fabrication of Protein-Functionalized Gold-Polypyrrole-Gold Segmented Nanowires

September 1, 2004
Author(s)
R M. Hernandez, Lee J. Richter, Stephen Semancik, Stephan J. Stranick, Thomas E. Mallouk
… Gold nanowires containing protein-modified poly(pyrrole) … anodic alumina, cyclic voltammetry, gold, nanowire, pH, polypyrrole, protein-functionalization, … Template Fabrication of Protein-Functionalized Gold-Polypyrrole-Gold Segmented Nanowires …

Entangled Mechanical Oscillators

June 4, 2009
Author(s)
John D. Jost, Jonathan Home, Jason Amini, David Hanneke, R. Ozeri, Christopher Langer, John J. Bollinger, Dietrich G. Leibfried, David J. Wineland
… demonstrate entanglement of an internal state of an atomic ion with a separated mechanical oscillator. These results … atom trapping, ion trapping, laser cooling, laser spectroscopy, quantum …

Axisymmetric scalable magneto-gravitational trap for diamagnetic particle levitation

December 11, 2018
Author(s)
Kristine A. Bertness, John P. Houlton, Max L. Chen, Matthew D. Brubaker, Charles T. Rogers
… We report an axisymmetric magnetic trap design for levitating diamagnetic particles. The … and gallium nitride (GaN) powder and nanowires. Particles trap stably at atmosphere and in high-vacuum for periods up … determined by choices made to actively destabilize the trap. We describe the principles of operation, finite element …

Parallel-Plate Rheometer Calibration Using Oil and Lattice Boltzmann Simulation

October 11, 2007
Author(s)
Chiara F. Ferraris, Nicos Martys, M R. Geiker, N V. Muzzatti
… the viscosity. This paper presents a modified parallel plate rheometer. Experimental measurements on standards oils … cement paste, mortar, parallel plate rheometer, rheology, standard oil … Parallel-Plate Rheometer Calibration Using Oil and Lattice Boltzmann …

Scattering Length Determination From Trapped Pairs of Atoms

August 2, 2005
Author(s)
S Shresta, Eite Tiesinga, E L. Bolda, Carl J. Williams
… effective scattering lengths via spectroscopy on a trapped pair of atoms. The method relies on the well known … Scattering Length Determination From Trapped Pairs of Atoms …

Density changes in amorphous silicon induced by swift heavy ions

October 4, 2022
Author(s)
Sjoerd Roorda, Amelie Lacroix, Stephanie Codsi, Gabrielle Long, Fan Zhang, Steven Weigand, Christina Trautmann
… silicon membranes were irradiated with swift heavy ions (75 MeV Ag or 1.1 GeV Au ions) and studied by small angle X-ray scattering. The samples that were irradiated with 1.1 GeV Au ions produced a scattering pattern consistent with core-shell … Density changes in amorphous silicon induced by swift heavy ions …
Displaying 351 - 375 of 4633
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