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Search Publications

NIST Authors in Bold

Displaying 1051 - 1075 of 4633

Measurement of Ion-Pairing Interactions in Buffer Solutions with Microwave Microfluidics

January 1, 2019
Author(s)
Charles A. Little, Angela C. Stelson, Nathan D. Orloff, Christian J. Long, James C. Booth
… physical properties including interfacial polarization, ion mobility, and hydration. Many biologically and chemically … show that the presence of ions in solution produces a weak ion-pairing signal. We used microfluidics integrated with … solutions between 100 kHz – 67 GHz. To characterize the ion-pairing signal, we fit the calibrated data with two …

Polarized Light Scattering From Metallic Particles on Silicon Wafers

December 1, 2001
Author(s)
Jae H. Kim, S H. Ehrman, George W. Mulholland, Thomas Germer
… Polarized light scattering by monodisperse copper and gold spheres, having diameters ranging from 96 nm to 205 nm … copper, gold inspection, metal, particles, polarization, scattering, …

Effects of Processing on Microstructure and Mechanical Properties of Ti-6Al-4V Fabricated using Electron Beam Melting (EBM), Part 1: Distance from Build Plate and Part Size

June 20, 2013
Author(s)
Nikolas W. Hrabe, Timothy P. Quinn, Ryan Kircher
… intra-build processing parameters: distance from the build plate and part size. Microstructure evaluation (qualitative … not found to vary as a function of distance from the build plate, which was hypothesized to be influenced by the build plate preheating associated with the EBM process. Part size …

Enhanced Model for Scanning Tunneling Microscope Tip Geometry Measured with Field Ion Microscopy

March 10, 2004
Author(s)
P V. Rao, Carsten P. Jensen, Richard M. Silver
… as conical, spherical, or parabolic. By using a field ion microscope (FIM), the tip shape and size can be measured … characterize SPM tips, detailed shape of the tip, field ion microscopy (FIM), scanning probe microscope, tip character … Tunneling Microscope Tip Geometry Measured with Field Ion Microscopy …

Sympathetic cooling of 9 Be + and 24 Mg + for quantum logic

January 1, 2003
Author(s)
Murray D. Barrett, B. L. DeMarco, T Schaetz, Dietrich Leibfried, Joseph W. Britton, J Chiaverini, Wayne M. Itano, Branislav M. Jelenkovic, John D. Jost, Christopher Langer, Till P. Rosenband, David J. Wineland
… We demonstrate the cooling of a two species ion crystal consisting of one 9Be+ and one 24Mg+ ion. Since the respective cooling transitions of these two … system for reinitializing the motional state in an ion trap quantum computer without affecting the qubit …

Output Coupling from a Trapped Bose-Einstein Condensate in a Vortex State

August 1, 2003
Author(s)
P B. Blakie, R J. Ballagh, Charles W. Clark
… atom laser can be realized by output coupling a trapped vortex state with a Raman scattering process. We find … in two and three dimensions the output beam from a trapped central vortex state is analyzed for cases of pulsed … Output Coupling from a Trapped Bose-Einstein Condensate in a Vortex State …

Light-Cured Dimethacrylate-Based Resins and Their Composites: Comparative Study of Mechanical Strength, Water Sorption and Ion Release

July 30, 2008
Author(s)
Justin N. O'Donnell, Sarah Langhorst, Michael D. Fow, Joseph M. Antonucci, Drago Skrtic
… flexure strength (BFS), water sorption (WS) and mineral ion release upon immersion in HEPES-buffered saline solution … higher than the BFS of the corresponding ACP composites. Ion release data indicated that a minimum mass fraction of 35 … amorphous calcium phosphate, composites, ion release, mechanical strength, photo-polymerization, water …

Measuring bipartite spin correlations of lattice-trapped dipolar atoms

April 16, 2024
Author(s)
Youssef AZIZ ALAOUI, Sean Muleady, Edwin Chaparro, Youssef Trifa, Ana Maria Rey, Tommaso Roscilde, Bruno Laburthe-Tolra, Laurent Vernac
… lattice-trapped magnetic atoms, spin correlations … Measuring bipartite spin correlations of lattice-trapped dipolar atoms …

Optical Tunnel-Trap Detector for Radiometric Measurements

October 1, 2000
Author(s)
John H. Lehman, Christopher L. Cromer
… We have designed and evaluated an optical trap detector that is simple to fabricate and convenient to use. The trap geometry is a triangular tube similar to a kaleidoscope, … Optical Tunnel-Trap Detector for Radiometric Measurements …

Opto-Mechanical and Electronic Design of a Tunnel-Trap Si-Radiometer

November 1, 2000
Author(s)
George P. Eppeldauer, D C. Lynch
… A transmission-type light-trap silicon-radiometer has been developed for the Spectral … inside of a triangular shape tunnel. A second light trap was attached to the output of the device to collect the … converter to optimize performance. The trap-radiometer can measure either dc or ac (chopped) optical …

Creation of an Ultracold Neutral Plasma

December 1, 1999
Author(s)
T C. Killian, S Kulin, S D. Bergeson, Luis A. Orozco, C R. Orzel, S L. Rolston
… is evident in the trapping of electrons by the positive ion cloud when the Debye screening length becomes smaller …

Enthalpies of Dilution of NdCl 3 (aq) at Temperatures from 297.89 K to 372.08 K and an Extended Pitzer Ion-Interaction Model for the NdCl 3 + H 2 O System

March 1, 2004
Author(s)
C S. Oakes, J A. Rard, Donald G. Archer
… to yield the parameters of an exended form of Pitzer's ion-interaction model valid to high molalities and for the … activity coefficient, enthalpy, heat capacity, ion-interaction, neodymium chloride, phase equilibrium, … from 297.89 K to 372.08 K and an Extended Pitzer Ion-Interaction Model for the NdCl 3 + H 2 O System …

Thick Sintered Electrode Lithium-Ion Battery Discharge Simulations: Incorporating Lithiation-Dependent Electronic Conductivity and Lithiation Gradient due to Charge Cycle

April 21, 2021
Author(s)
Daniel S. Hussey, Jacob LaManna, David L. Jacobson, Gary Koenig
… In efforts to increase the energy density of lithium-ion batteries, researchers have attempted to both increase … Thick electrode, Modeling, Discharge Simulation, Lithium-Ion Battery … Thick Sintered Electrode Lithium-Ion Battery Discharge Simulations: Incorporating …

Quantum Projection Noise: Population Fluctuations in 2-Level Systems

January 1, 1993
Author(s)
Wayne M. Itano, James C. Bergquist, John J. Bollinger, J M. Gilligan, D J. Heinzen, F L. Moore, M G. Raizen, David J. Wineland
… are available. In the experiments described here, a single ion or a few identical ions were prepared in well-defined … of the energy levels were then measured. For an individual ion, the outcome of the measurement is uncertain, unless the …

Quantum Logic for Trapped Atoms Via Molecular Hyperfine Interactions

February 1, 2002
Author(s)
G K. Brennen, I H. Deutsch, Carl J. Williams
… the deterministic entanglement of a pair of neutral atoms trapped in an optical lattice by coupling to excited-state … Quantum Logic for Trapped Atoms Via Molecular Hyperfine Interactions …
Displaying 1051 - 1075 of 4633
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