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Displaying 176 - 200 of 4632

Ion transport and reordering in a two-dimensional trap array

May 19, 2020
Author(s)
Yong Wan, Robert Jordens, Stephen Erickson, Jenny Wu, Ryan S. Bowler, Ting R. Tan, Panyu Hou, Andrew C. Wilson, Dietrich Leibfried
… segments in a two-dimensional (2D) segmented linear Paul trap to reconfigure a two-ion crystal. The secular motion of the ions experiences low … in a large-scale, two- or three-dimensional trapped-ion quantum information processor. … Ion transport and reordering in a two-dimensional trap array …

Atomic Physics in Ion Traps

March 1, 1997
Author(s)
C Monroe, John Bollinger
… Ion traps allow researchers to control the position and … Atomic Physics in Ion Traps …

Image Plates for Registration of Far-Ultraviolet Spectra

February 1, 2000
Author(s)
Joseph Reader, Craig J. Sansonetti, R Deslattes
… plate shows sensitivity comparable with the photographic plates but has a linear intensity response over a much wider … These initial results suggest that optimized image plates with an improved scanner would provide a favorable alternative to photographic plates in this spectral region. …

Quantitative Evaluation of Perfluorinated Alkylthiol Molecular Order on Gold Surfaces

October 12, 2021
Author(s)
L Gamble, D Radford, Daniel A. Fischer, D W. Grainger, David G. Castner
… [CF 3 (CF 2 ) x CH 2 CH 2 SH (x=3, 5, 7, and 9)] on gold were examined by X-ray photoelectron spectroscopy (XPS), … 2 SH (x=5,7, and 9: F6, F8 and F10 respectively) SAMs on gold exhibited significant enrichment of the terminal CF 3 … consistent with bound thiolates located at the monolayer-gold interface. XPS of the CF 3 (CF 2 ) 3 CH 2 CH 2 SH (F4) …

Laser Cooling of Trapped Ions

January 1, 1991
Author(s)
Wayne M. Itano, James C. Bergquist, John J. Bollinger, David J. Wineland
… Laser Cooling of Trapped Ions …

Negative Ion-Neutral Reactions in Townsend Discharges

July 1, 1999
Author(s)
James K. Olthoff, MVVS. Rao
… Relative intensities and translational ion-flux energy distributions are presented for negative ions … 2 kTd). These results are discussed in light of relevant ion-molecule reactions where available. … CF 4 , ion molecule reactions, negative ions, O 2 , SF 6 , Townsend …

Simplified Quantum Logic with Trapped Ions

January 1, 1997
Author(s)
C Monroe, Dietrich Leibfried, B E. King, D M. Meekhof, Wayne M. Itano, David J. Wineland
… Simplified Quantum Logic with Trapped Ions …

Heating Rates and Enhanced Equilibration Rates with Strongly Correlated Ions in a Penning-Malmberg Trap

June 25, 2006
Author(s)
John J. Bollinger, Marie J. Jensen, T Hasegawa, D H. Dubin
… We laser cool up to 10 6 9 Be + ions to ~ 1 mK in a Penning-Malmberg trap and measure the ion temperature as a function of time … off the cooling laser. We observe a rapid heating of the ions when the their temperature in a direction parallel to … heat, non-neutral plasma, one component plasma, Penning trap, strongly correlated plasma …

Finite Element and Plate Theory Methods for Modeling Acoustic Emission Waveforms

October 1, 2002
Author(s)
W H. Prosser, Marvin A. Hamstad, John M. Gary, Agnes O'Gallagher
… in thin plates. A normal mode solution method for Mindlin plate theory was used to predict the flexural plate mode response to a point source, step-function load, applied on the plate surface. The second approach used a dynamic finite … acoustic emission, finite element modeling, plate theory …

Ligand Exchange Reactions in the Formation of Diphosphine-Protected Gold Clusters

August 14, 2008
Author(s)
Denis E. Bergeron, Orkid Coskuner, Jeffrey W. Hudgens, Carlos A. Gonzalez
… is employed to study the formation of L3- and L5-protected gold clusters (L3 = 1,3-Bis(diphenylphosphino)propane; L5 = … Electrospray ionization, gold nanoparticle, Car-Parrinello molecular dynamics, monolayer protected gold cluster … Reactions in the Formation of Diphosphine-Protected Gold Clusters …

Generating multiscale gold nanostructures on glass without sidewall deposits using minimal dry etching steps

March 19, 2019
Author(s)
Saugandhika S. Minnikanti, Jungjoon Ahn, Yaw S. Obeng, Darwin Reyes-Hernandez
… flat and ready for the deposition of other materials. The gold features that were produced by this method exhibited … nanotubes were deposited on top of patterned features (gold nanoelectrodes) providing a close circuit, hence demonstrating the functionality of the gold features after the dry etching process. The production …

A transition-edge sensor-based x-ray spectrometer for the study of highly charged ions at the National Institute of Standards and Technology electron beam ion trap

December 16, 2019
Author(s)
Paul Szypryt, Galen C. O'Neil, Endre Takacs, Joseph N. Tan, Sean W. Buechele, Aung Naing, Douglas A. Bennett, William B. Doriese, Malcolm S. Durkin, Joseph W. Fowler, Johnathon D. Gard, Gene C. Hilton, Kelsey M. Morgan, Carl D. Reintsema, Daniel R. Schmidt, Daniel S. Swetz, Joel N. Ullom, Yuri Ralchenko
… Sensor (TES) x-ray spectrometer for the Electron Beam Ion Trap (EBIT) at the National Institute of Standards and … NIST EBIT has produced numerous studies of highly charged ions in diverse fields such as atomic physics, plasma … Institute of Standards and Technology, highly charged ions, atomic physics, plasma spectroscopy, laboratory …

Architecture for a Large-Scale Ion-Trap Quantum Computer

January 1, 2002
Author(s)
D Kielpinski, C R. Monroe, David J. Wineland
… being explored for quantum computers are systems utilizing ion traps, in which quantum bits (qubits) are formed from the … on using quantum communication to link a number of small ion- trap quantum systems. Developing the array-based approach, we … Architecture for a Large-Scale Ion-Trap Quantum Computer …

Bang-bang shortcut to adiabaticity in the Dicke model as realized in a Penning trap experiment

May 29, 2018
Author(s)
J. Cohn, Arghavan Safari-Naini, R. J. Lewis-Swan, Justin G. Bohnet, M. Garttner, Kevin Gilmore, Elena Jordan, Ana Maria Rey, John Bollinger, James K. Freericks
… via a two-dimensional array of trapped ions in a Penning trap with a spin-dependent force detuned close to the … adiabaticity in the Dicke model as realized in a Penning trap experiment …

Experiments with highly-ionized atoms in unitary Penning traps

August 14, 2015
Author(s)
Shannon Hoogerheide, Aung Naing, Joan M. Dreiling, Samuel Brewer, Nicholas D. Guise, Joseph Tan
… of highly ionized atoms at low energy in unitary Penning traps, and experiments to study electron capture and … Experiments with highly-ionized atoms in unitary Penning traps …

Building Blocks for a Scalable Quantum Information Processor Based On Trapped Ions

January 1, 2003
Author(s)
Dietrich G. Leibfried, Murray D. Barrett, A Ben-kish, Joseph W. Britton, J Chiaverini, B. L. DeMarco, Wayne M. Itano, Branislav M. Jelenkovic, John D. Jost, Christopher Langer, D Lucas, V Meyer, Till P. Rosenband, M A. Rowe, T Schaetz, David J. Wineland
… for a Scalable Quantum Information Processor Based On Trapped Ions …

Coherent Quantum State Manipulation of Trapped Atomic Ions

January 1, 1998
Author(s)
David J. Wineland, C Monroe, D M. Meekhof, B E. King, Dietrich G. Leibfried, Wayne M. Itano, James C. Bergquist, D J. Berkeland, John J. Bollinger, J D. Miller
… A single, laser-cooled, trapped 9Be+ ion is used to investigate methods of coherent … in realizing, quantum computation based on multiple trapped ions. … Coherent Quantum State Manipulation of Trapped Atomic Ions …

Dose Calibration of Ion Implanters for Semiconductor Production

February 1, 1998
Author(s)
F A. Stevie, David S. Simons, J M. McKinley, J McMacken, R Santiesteban, P Flatch, J Becerro
… a relative uncertainty of less of 5%. The does of boron ion implants were measured by secondary ion mass spectrometry at two different laboratories using … Secondary Ion Mass Spectrometry SIMS XI … boron, ion implantation, silicon, SIMS … Dose Calibration of Ion Implanters for Semiconductor Production …
Displaying 176 - 200 of 4632
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