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Displaying 551 - 575 of 4633

Multiscale Green's function for deflection of graphene lattice

June 2, 2008
Author(s)
B. Yang, Vinod Tewary
Fundamental deflection behavior of an infinite two-dimensional graphene lattice subjected to a transverse point force has been analyzed using lattice statics and the continuum Green's functions. An analytic expression has been derived for the lattice

Optical Properties of Gold Nanorings

February 1, 2003
Author(s)
Javier Aizpurua, P Hanarp, D S. Sutherland, Garnett W. Bryant, F J. Garcia de Abajo, M Kall
… The optical response of ring-shaped gold nanoparticles prepared by colloidal lithography is investigated. Compared to solid gold particles of similar size, nanorings exhibit a … Optical Properties of Gold Nanorings …

Experimental demonstration of robust, high-fidelity geometric two ion-qubit phase gate

January 1, 2003
Author(s)
Dietrich G. Leibfried, B. L. DeMarco, V Meyer, D Lucas, Murray D. Barrett, Joseph W. Britton, Wayne M. Itano, Branislav M. Jelenkovic, Christopher Langer, Till P. Rosenband, David J. Wineland
… a universal geometric pi-phase gate between two beryllium ion-qubits, based on coherent displacements induced by an … force can be considered constant over the extent of each ion's wave packet. By combining the gate with single-qubit … experiment demonstrating a universal gate between two ion-qubits. The particular properties of the gate make it …

Cascade Transition X-Rays From Electron Capture Into Highly Charged Ions in Collisions With Neutral Gas Targets

May 1, 2003
Author(s)
H Tawara, E Takacs, L P. Ratliff, John D. Gillaspy, K Tokesi
… have been observed from low energy, highly charged Kr 1+ ions (q=27-36) colliding with neutral Ar atoms. The intensity … formed during cascades after electron capture into Kr 27+ ions. This is also supported by time-dependent population … charge exchange, highly charged ions, ion-atom collisions, x-rays …

Hybridization Thermodynamics of Bound DNA

August 8, 2010
Author(s)
Brian E. Lang
… of hybridization on DNA-functionalized colloidal gold nanoparticles. When compared to the thermodynamics of … of the hybridization reactions on the DNA functionalized gold nanoparticles, and the experiments indicate that there is a significant fraction of the DNA on gold nanoparticle surface that is unavailable for DNA …

Tuning the size of gold nanoparticles with repetitive oxidation-reduction cycles

March 31, 2015
Author(s)
Steve Y. Rhieu, Vytas Reipa
… A simple method to control the size of gold nanoparticles (AuNP) using repetitive … in AuNP diameter was attributed to the formation of gold oxide upon anodic potential sweep and the partial … of the Au(III) species during subsequent reduction of gold oxide in the absence of gold chelator (e.g. Cl-, Br-, or …

Short-Chained Oligo(ethylene oxide)-Functionalized Gold Nanoparticles: Realization of Significant Protein Resistance

October 30, 2017
Author(s)
Kathryn Riley, Christopher Sims, Imani Wood, David J. Vanderah, Marlon L. Walker
… for improved protein resistance of 30 nm spherical gold nanoparticles (AuNPs). Functionalized AuNPs were … protein corona, gold nanoparticles, ethylene oxide, binding constant, … Short-Chained Oligo(ethylene oxide)-Functionalized Gold Nanoparticles: Realization of Significant Protein …

Multi-facility comparison of InGaAs trap detector responsivity for optical fiber power

September 1, 2025
Author(s)
Kyle Rogers, Jeanne Houston, Zeus Ruiz Gutierrez, Matthew Spidell, Padraic Aither, Marty Gould, John Lehman
… The absolute responsivity of an optical detector in a trap configuration has been investigated in the interest of … We present here a complete evaluation of multiple trap detectors consisting of two InGaAs photodiodes and a … trap detector, fiber optic power meter, laser power …

Behavior of molecules and molecular ions near a field emitter

March 18, 2016
Author(s)
Ann C. Chiaramonti Debay, Baptiste Gault, Michael Ashton, Susan B. Sinnott, Michael P. Moody, David W. Saxey, D. K. Schreiber
… APT experiments often incorporate the detection molecular ions emitted from the specimen, in particular from covalently … an APT experiment by dissociation of metastable molecular ions. … Behavior of molecules and molecular ions near a field emitter …

Intercombination and Forbidden Transition Rates in C- and N-Like Ions (O 2+ , F 3+ and S 9+ ) Measured at a Heavy-Ion Storage Ring

August 1, 2000
Author(s)
E Trabert, A G. Calamai, John D. Gillaspy, G Gwinner, X Tordoir, A Wolf
… between the levels of the ground state in C-like ions of O and F and in N-like ions of S have been measured optically at a heavy-ion storage ring. The lifetime results, 1.250(13) ms for the … excited-state lifetime, Fluorine, highly-charged ion, oxygen, storage ring, sulfur, ultraviolet …

The Contribution of HfO2 Bulk Oxide Traps to Dynamic NBTI in pMOSFETs

April 20, 2005
Author(s)
Baozhong Zhu, John S. Suehle, Eric M. Vogel, Joseph B. Berstein
… acceleration parameters are quite different for them. Bulk traps in the HfO2 film are used to explain these differences. … bulk oxide traps, Hafnium oxide, high-k gate dielectrics, negative bias … The Contribution of HfO2 Bulk Oxide Traps to Dynamic NBTI in pMOSFETs …

Imaging Nanophotonic Modes of Microresonators using a Focused Ion Beam

January 15, 2016
Author(s)
Kevin A. Twedt, Jie J. Zou, Marcelo I. Davanco, Kartik A. Srinivasan, Jabez J. McClelland, Vladimir A. Aksyuk
… local optomechanical perturbation using a focused lithium ion beam. An ion beam (radius ≈50 nm) induces a picometer-scale dynamic … Our technique also enables in-situ observation of ion implantation damage and relaxation dynamics in a silicon … microresonators, focused ion beams, optomechanics …

Synthesis and Structural Characterization of Glucopyranosylamide Films on Gold

January 16, 2007
Author(s)
Mridula Kadalbajoo, J J. Park, A Opdahl, Hiromi Suda, Kitchens A. C, Jayne C. Garno, J Batteas, Michael J. Tarlov, Phillip DeShong
… derivatized with thiol functionalities and adsorbed on gold surfaces from ethanol solutions. The resulting film … derivatives with free hydroxyl groups attach to gold via the thiol linker. Both derivatives form monolayer … to those typically observed for alkanethiol monolayers on gold. …

A Cold-Atom Beam Clock, based on Coherent Population Trapping

July 17, 2019
Author(s)
John D. Elgin, Thomas P. Heavner, John E. Kitching, Elizabeth A. Donley, Jayson Denney, Evan Salim
… atoms and spatially separated (Ramsey) coherent population trapping interrogation of the hyperfine clock transition at … Atomic Clock, Coherent Population Trapping, Cold Atoms … A Cold-Atom Beam Clock, based on Coherent Population Trapping …

Holographic Radius Test Plates

September 7, 2013
Author(s)
Quandou (. Wang, Johannes A. Soons, Ulf Griesmann
… Optical interferometry, Radius test plates, Computer-generated hologram … Holographic Radius Test Plates …

Communication-Comparison of Nanoscale Focused Ion Beam and Electrochemical Lithiation in beta-Sn Microspheres

December 5, 2016
Author(s)
Saya Takeuchi, William R. McGehee, Jennifer L. Schaefer, Truman M. Wilson, Kevin A. Twedt, Christopher L. Soles, Vladimir P. Oleshko, Eddie H. Chang, Jabez J. McClelland
… The development of Li focused ion beams (Li-FIB) enables controlled Li ion insertion into materials with nanoscale resolution. We … establishing the relevance of the Li-FIB for studies of ion dynamics in electrochemically active materials by … Li-FIB, lithium-ion battery, Sn …

Designing artificial cells to harness the biological ion gradient

November 23, 2008
Author(s)
Jian Xu, David A. LaVan
… contain numerous natural nanoscale conductors, i.e. ion channels and ion pumps1-4, that work in concert to form transmembrane or transcellular ion gradients that can be triggered to release an action … electrocyte, ion channel, artificial cell, nanoconductor, biological …

Al, B, and Ga Ion-Implantation Doping of SiC

November 1, 2000
Author(s)
E Handy, M V. Rao, O W. Holland, P Chi, K A. Jones, M A. Derenge, R D. Vispute, T Venkatesan
… A Series of single energy Al, B, and Ga ion implants were performed in the energy range 50 keV - 4 … to characterize the implant depth profiles using secondary ion mass spectrometry (SIMS). From the implant depth profiles … A1N, diffusion, Ion Implantation, SiC, SIMS …

Lipid Nanodomains Change Ion Channel Function

August 22, 2017
Author(s)
Michael NMN Weinrich, David Worcester, Sergey M. Bezrukov
… modulate protein function, but evidence for modulation of ion channels is lacking. Here we show in a cholesterol-rich … the dissociation kinetics of the gramicidin dimer, a model ion channel. … Lipid Rafts, Lipid Domains, Ion Channels, Lipid Phases, Nanodomains … Lipid Nanodomains Change Ion Channel Function …
Displaying 551 - 575 of 4633
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