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Search Publications

NIST Authors in Bold

Displaying 301 - 325 of 2537

Experimental Issues in Coherent Quantum-State Manipulation of Trapped Atomic Ions,

January 1, 1998
Author(s)
David J. Wineland, C Monroe, Wayne M. Itano, Dietrich G. Leibfried, B E. King, D M. Meekhof
… to, the generation of entangled states of trapped atomic ions are examined. As much as possible, state manipulations … potential applications for entangled states of trapped-ions which lie outside the immediate realm of quantum … quantum computation, quantum state engineering, trapped ions …

Latent Reliability Degradation of Ultra-Thin Oxides after Heavy Ion and Gamma Ray Irradiation

October 18, 2001
Author(s)
Bin Wang, John S. Suehle, Eric M. Vogel, J. R. Conley, C E. Weintraub, A. H. Johnston, J B. Bernstein
… We studied the effects of heavy ion and gamma ray irradiation on radiation-induced leakage … reliability, Time-Dependent Dielectric Breakdown, heavy ion, radiation effects … Reliability Degradation of Ultra-Thin Oxides after Heavy Ion and Gamma Ray Irradiation …

Quantum information processing with trapped ions

July 25, 2004
Author(s)
Murray D. Barrett, Tobias Schaetz, J Chiaverini, Dietrich Leibfried, Joseph W. Britton, Wayne M. Itano, John D. Jost, Emanuel Knill, C. Langer, R Ozeri, David J. Wineland
… ofmulti-particle entangled states of trapped atomic ions. The experiments reported here, quantum dense coding and … quantum-state engineering, teleportation, trapped ions … Quantum information processing with trapped ions …

3D Imaging of Diatoms with Ion-abrasion Scanning Electron Microscopy

June 9, 2009
Author(s)
Keana C. Scott, Mark Hildebrand, Sang Kim, Dan Shi, Sriram Subramaniam
… Ion-abrasion scanning electron microscopy (IASEM) takes advantage of focused ion beams to abrade thin sections from the surface of bulk … "Diatom", "Ion-abrasion SEM", "Biomineral structure formation", … 3D Imaging of Diatoms with Ion-abrasion Scanning Electron Microscopy …

Quantum spin dynamics and entanglement generation with hundreds of trapped ions

June 15, 2016
Author(s)
Justin G. Bohnet, Brian C. Sawyer, Joseph W. Britton, Michael L. Wall, A M. Rey, Michael S. Foss-Feig, John J. Bollinger
… and decoherence in open quantum systems. Trapped ions are an established platform for quantum simulation, but only systems with fewer than 20 ions have demonstrated quantum correlations. We benchmark … interaction in two-dimensional arrays of up to 230 9Be+ ions in a Penning trap. We verify entanglement at early times …

Chemical Discrimination of Multilayered Paint Cross Sections for Potential Forensic Applications using Time-of-Flight Secondary Ion Mass Spectrometry

June 15, 2018
Author(s)
Shinichiro N. Muramoto, J Greg Gillen, Eric S. Windsor
… Time-of-flight secondary ion mass spectrometry (ToF-SIMS) equipped with a bismuth imaging source and an argon gas cluster ion beam (GCIB) was used to image polished cross-sections of … of the individual layers was possible after a GCIB sputter ion dose of 7 × 1015 ions/cm2 was applied for the removal of …

Testing Three-body Quantum Electrodynamics with Trapped Ti-20 Ions: Evidence for a Z-Dependent Divergence between Experiment and Calculation

October 10, 2012
Author(s)
Lawrence T. Hudson, C T. Chantler, Mark N. Kinnane, John D. Gillaspy, A.T. Payne, L F. Smale, Albert Henins, Joseph N. Tan, J A. Kimpton, E Takacs, K Makonyi, Joshua M. Pomeroy
… for all reported w-line transitions in two- electron ions for Z > 15 are considered, a general divergence becomes … quantum electrodynamics, highly-charged ions, helium-like titanium, electron beam ion trap, … Three-body Quantum Electrodynamics with Trapped Ti-20 Ions: Evidence for a Z-Dependent Divergence between …

Towards scaling up trapped ion quantum information processing

June 19, 2007
Author(s)
Dietrich G. Leibfried, David J. Wineland, Brad R. Blakestad, John J. Bollinger, Joseph W. Britton, J Chiaverini, Ryan Epstein, Wayne M. Itano, John D. Jost, Emanuel H. Knill, C. Langer, R Ozeri, Rainer Reichle, Signe Seidelin, Nobuyasu Shiga, Janus Wesenberg
… ion trap, quantum information processing, scale-up … Towards scaling up trapped ion quantum information processing …

Energy Levels of 4f3 in the Free Nd3+ Ion From Emission Spectra

February 1, 2006
Author(s)
J-F Wyart, Ali Meftah, Annik Bachelier, Jocelyne Sinzelle, Wan-U Lydia Tchang-Brillet, Norbert Champion, Nissan Spector, J Sugar
… to 37 levels of the 4f3 ground configuration in the free ion Nd3+. The levels 4f3 4F3/2 and 4I11/2, responsible for … Nd3+:LaCl3 are 3 to 5 percent smaller than in the free ion. … emission spectrum, energy levels, free-ion, neodymium, parametric fits, triply-ionized, wavelengths …

UV-sensitive superconducting nanowire single photon detectors for integration in an ion trap

April 17, 2017
Author(s)
Daniel H. Slichter, Varun B. Verma, Dietrich G. Leibfried, Richard P. Mirin, Sae Woo Nam, David J. Wineland
… electrode radio-frequency Paul traps for use in trapped ion quantum information processing. We operate detectors integrated into test ion trap structures at 3.8 K both with and without typical … Ion trap, Quantum detectors, Quantum computing, Quantum … nanowire single photon detectors for integration in an ion trap …

Product ion distributions using H3O+ proton-transfer-reaction time-of-flight mass spectrometry (PTR-ToF-MS): mechanisms, transmission effects, and instrument-to-instrument variability

February 27, 2025
Author(s)
Michael Link, Megan Claflin, Christina Cecelski, Ayomide Akande, Delany Kilgour, Paul Heine, Matthew Coggon, Chelsea Stockwell, Andrew Jensen, Jie Yu, Han Huyhn, Jenna Ditto, Carnsten Warneke, William Dresser, Keighan Gemmell, Spiro Jorga, Rileigh Robertson, Joost de Gouw, Timothy Bertram, Jonathan Abbatt, Nadine Borduas-Dedekind, Dustin Poppendieck
… mass spectrometry (PTR-MS) using hydronium ion (H3O+) ionization is widely used for the measurement of … H3O+ ionization, as well as the associated chemistry in an ion–molecule reactor, is known to generate product ion distributions (PIDs) that include other product ions …

Photoexcitation of Free Radicals and Molecular Ions Trapped in Rare-Gas Solids.

May 2, 2011
Author(s)
Marilyn E. Jacox
… The photochemical production of free radicals, molecular ions, and other highly reactive species, their trapping in … Spectrum, Free Radicals, Infrared Spectrum, Molecular Ions, Photoexcitation, Rare-Gas Matrices … Photoexcitation of Free Radicals and Molecular Ions Trapped in Rare-Gas Solids. …

Role of Ion-Beam Processing Time in the Formation and Growth of the High-Nitrogen Phase in Austenitic Stainless Steel

November 1, 2000
Author(s)
D L. Williamson, P J. Wilber, F R. Fickett, S Parascandola
… been prepared as a function of exposure time to a nitrogen ion beam Times from 15 to 4 h were selected with other … below the γ N and was found to be introduced during the Ar-ion sputter-cleaning/heating step used prior to exposure to the N-ion beam. This C-rich layer is punished ahead of the incoming …

High-precision measurements of n = 2 - n = 1 transition energies and level widths in He- and Be- like Argon Ions

March 26, 2018
Author(s)
Jorge Machado, Csilla Szabo-Foster, Jose Paulo Santos, Pedro Amaro, Mauro Guerra, Guojie Bian, Jean-Michel Isac, Paul Indelicato
… and of the 1s2s22p 1P1 → 1s22s2 1S0 line in Be-like argon ions. The highly-charged ions were produced in the plasma of an Electron-Cyclotron … Highly charged ions, He-like argon, Be-like argon, level widths, transition … energies and level widths in He- and Be- like Argon Ions …

Measuring the difference in nuclear charge radius of Xe isotopes by EUV spectroscopy of highly charged Na-like ions

November 5, 2018
Author(s)
Roshani Silwal, A. Lapierre, John D. Gillaspy, Joan M. Dreiling, S A. Blundell, Dipti Goyal, A. Borovik, Jr., G Gwinner, A.C.C. Villari, Yuri Ralchenko, Endre Takacs
… extreme ultraviolet spectroscopy of highly charged Na-like ions. The isotope shift of the Na-like D1 (3s 2S1/2 − 3p … EUV spectroscopy, Na-like ions, highly charged ions, EBIT, nuclear radius Category, atomic physics, atomic … Xe isotopes by EUV spectroscopy of highly charged Na-like ions …

Dynamic Partitioning of Neutral Polymers into a Single Ion Channel

June 1, 1999
Author(s)
S. M. Bezrukov, John J. Kasianowicz
… using single nanometer-scale pores formed by protein ion channels. The ionic conductance of a channel depends on … glycol) into two structurally and chemically different ion channels (staphylococcus aureus α-hemolysin and … alamethecin, alpha-hemolysin, diffusion, ion channel, noise analysis, partition coefficient, PEG, …

Calibration of a Stopping Power Model for Silicon Based on Analysis of Neutron Depth Profiling and Secondary Ion Mass Spectrometry Measurements

June 1, 2002
Author(s)
Kevin J. Coakley, Huaiyu H. Chen-Mayer, George P. Lamaze, David S. Simons, P E. Thompson
… a silicon sample with four delta-doped planes by secondary ion mass spectrometry. In a neutron depth profiling (NDP) … model calibration, neutron depth profiling, secondary ion mass spectrometry, silicon, stopping power, transport of … Based on Analysis of Neutron Depth Profiling and Secondary Ion Mass Spectrometry Measurements …

Study of Direct Lithiation of Thin Si Membranes with Spatially-Correlative Low Energy Focused Li Ion Beam and Analytical Electron Microscopy Techniques

November 22, 2016
Author(s)
Vladimir P. Oleshko, Christopher L. Soles, Kevin A. Twedt, J J. McClelland
… Si is an attractive anode material for high-performance Li-ion batteries. The practical use of Si-based anodes is, … these problems. Here, we report on controlled low dose Li+ ion implantation into 9 nm-thick amorphous (a-Si) membranes … (c-Si) membranes using a low-energy focused lithium ion beam. With probe sizes of a few tens of nanometers at …
Displaying 301 - 325 of 2537
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