Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Journals

Entanglement Dynamics in 1D Quantum Cellular Automata

October 12, 2021

Author(s)

G K. Brennen, J E. Williams

Several proposed schemes for the physical realization of a quantum computer consist of qubits arranged in a cellular array. In the quantum circuit model of...

Cross Sections for Electron Impact Excitation of the Vibrationally-Resolved A¹[PI] Electronic State of Carbon Monoxide

October 12, 2021

Author(s)

H. Kato, H Kawahara, M Hoshino, H Tanaka, M J. Brunger, Yong Sik Kim

We report on new differential cross section measurements for electron impact excitation of the A1 ( 0) states of Carbon Monoxide. The energy range of this work...

Hydrosomes: Optically Trapped Femtoliter Containers for Single Molecule Studies and Microfluidics

October 12, 2021

Author(s)

Joseph E. Reiner, Alice M. Crawford, Rani B. Kishore, Lori S. Goldner, M K. Gilson, Kristian Helmerson

We demonstrate a novel technique for creating, manipulating, and combining femtoliter volume chemical containers. Possible uses include creating controlled...

Recommended Dose Calculation Formalisms and Consensus Dosimetry Parameters for Intravascular Brachytherapy Dosimetry: An Update of the 1999 AAPM Task Group 60 Report

October 12, 2021

Author(s)

Sou-Tung Chiu-Tsao, Dennis Schaart, Christopher G. Soares, Ravinder Nath

Since the publication of AAPM Task Group 60 report in 1999, a considerable amount of dosimetry data for the three coronary brachytherapy systems in use in the...

Detailed Studies and Control of Intensity-Related Dynamics of Femtosecond Frequency Combs From Mode-Locked Ti:Sapphire Lasers

October 12, 2021

Author(s)

K W. Holman, R J. Jones, A Marian, S T. Cundiff, Jun Ye

We have conducted detailed experimental investigations of the intensity-related dynamics of the pulse repetition and carrier-envelope offset frequencies of...

Implemantation of the Deutsch-Jozsa Alborithm With Rovibrational Molecular Wave Packets

October 12, 2021

Author(s)

J Vala, Z Amitay, S R. Leone, R Kosloff

The modified Deutsch-Jozsa quantum algorithm, which is used for identifying whether a given binary function is constant or balanced, is demonstrated...

Bose-Einstine condensation in a dilute gas: Measurement of energy and ground state occupation

October 12, 2021

Author(s)

J R. Ensher, Deborah S. Jin, M R. Matthews, C E. Wieman, Eric A. Cornell

We measure the ground state occupation and energy of a dilute Bose gas as a function of temperature. 87Rb atoms are collected in an optical trap, loaded into a...

Issues and Applications in Ultra-Sensitive Molecular Spectroscopy

October 12, 2021

Author(s)

C Ishibashi, Jun Ye, John L. Hall

We present a systematic analysis of ultra-sensitive molecular detection methods based on an optical cavity and frequency modulationspectroscopy. Our goal is...

Monitoring Variations in Crystalline Structure at the Surface of Thick Pd₂Si Films With Variable Angle Spectroscopic Ellipsometry

October 12, 2021

Author(s)

E Mirowski, S R. Leone

Two films of palladium silicide (1000 ), one single crystalline and one partly polycrystalline with smaller crystallites at the surface,are investigated using...

Deeply Subrecoil Two-Dimensional Raman Cooling

October 12, 2021

Author(s)

V Boyer, L Lising, S L. Rolston, William D. Phillips

Reciprocal Space Neutron Imaging

October 12, 2021

Author(s)

D A. Pushin, D G. Cory, Muhammad D. Arif, David L. Jacobson, M Huber

Here we introduce a Fourier based method for phase contrast neutron imag-ing, report its experimental implementation, show results for a 1-D test phan-tom, and...

Critical Size for Shape Transition and Size Evolution of Ge Islands on Si (100)

October 12, 2021

Author(s)

B Liu, C L. Berrie, J Bright, S R. Leone

Atomic force microscopy is used to study the molecular beam epitaxy of Ge on Si(100) at different growth temperatures and coverages. Forgrowth temperatures...

Tuning the Mean-Field Energy in a Fermi Gas of Atoms

October 12, 2021

Author(s)

C A. Regal, Deborah S. Jin

An exotic superfluid phase has been predicted for an ultracold gas of fermionic atoms. Experimenters have cooled these gases into the quantum degenerate regime...

Time-Resolved Measurements of the E-to-H Mode Transition in Electronegative Pulse-Modulated Inductively Coupled Plasmas

October 12, 2021

Author(s)

M Edamura, Eric C. Benck, Yicheng Wang

Time-resolved measurements of electronegative pulse-modulated inductively coupled plasmas (ICPs) were carried out using various measurement techniques. It was...

Pressure-Induced Optoelectronic Properties of InP Nanocrystals: Tight-Binding Approach

October 12, 2021

Author(s)

J G. Diaz, W Jaskolski, M Zielinski, Garnett W. Bryant

An empirical tight-binding theory is used to investigate pressure effects on the electronic and optical properties of InP nanocrystals. For bulk InP, our model...

Radiation From k-Shell Filling in Highly Charged Ions: A Driver for Resonant Combination Cancer Therapy?

October 12, 2021

Author(s)

A P. Kavanagh, John D. Gillaspy, D G. Hirst, M H. Mendenhall, N Nakamura, S Ohtani, H Wantanabe, F J. Currell

The possibility of using radiation from bare and hydrogen-like highly-charged ions as a driver for a proposed form of cancer therapy is discussed. This proposed...

The Role of Fluorine Chemistry in Anisotropic Etching of Dielectric Materials

October 12, 2021

Author(s)

B Ji, S A. Motika, P R. Badowski, S Dheandhanoo, C Timmons, D E. Hess, Eric C. Benck, Y Ye

Fluorine-containing compounds have for many years been utilized to etch dielectric materials such as silicon oxide. Maintaining the balance between the removal...

Barium Strontium Titaanate Thin Film Analysis

October 12, 2021

Author(s)

T Remmel, R Deslattes, S Fujimura, H Honma, H Kobayashi, H Kohno, S M. Owens, J Pedulla, M Schulberg

Barium Strontium Titanate (BST) is under consideration as a high dielectric constant material for a number of semiconductor applications. Because of its very...

Effects of Flow Field and Diffusion Layer Properties on Water Accumulation in a PEM Fuel Cell

October 12, 2021

Author(s)

Jon P. Owejan, T Trabold, D L. Jacobson, Muhammad D. Arif, S G. Kandlikar

Water is the main product of the electrochemical reaction in a proton exchange membrane (PEM) fuel cell. Where the water is produced over the active area of the...

Ionization Cross Sections by Electron Impact of Halogen Atoms, Diatomic Halogen and Hydrogen Halide Molecules

October 12, 2021

Author(s)

M A. Ali, Yong Sik Kim

The Binary-Encounter-Bethe (BEB) model has been applied to calculate electron impact ionization cross sections of Br, I, Br2, I2, HCl, HBr and HI. The BEB...

Low-Temperature Kinetics of the Reaction of the OH Radical With Hydrogen Peroxide

October 12, 2021

Author(s)

A B. Vakhtin, D C. McCabe, A R. Ravishankara, S R. Leone

The kinetics of the reaction of the OH radical with hydrogen peroxide. H 2O 2 are studied over a temperature range of 96-296 K. The low-temperature environment...

Dielectric Function of Wurtzite GaN and AIN Thin Films

October 12, 2021

Author(s)

L X. Benedict, Eric L. Shirley, T Wethkamp, K Wilmers, C Cobet, N Esser, W Richter, M Cardona

We present measurements and calculations of the dielectric function of wurtzite GaN and AIN. Spectroscopic ellipsometry was used to determine ε (omega) of thin...

Proton-Pumping Capabilities of the M-Fast and M-Slow Photocycles of Bacteriorhodopsin

October 12, 2021

Author(s)

R W. Hendler, John Kakareka, P D. Smith, T J. Pohida, Curtis W. Meuse

The parallel model for the bacteriorhodopsin (BR) photocycle at neutral pH and a temperature near 20 contains an M-fast cycle with steps BR >K >L >Mf >N >O >BR...

Universal Algorithm for Calculating Transport Cross Sections of Electrons With Energies From 50 eV to 30 keV

October 12, 2021

Author(s)

Aleksander Jablonski, Cedric J. Powell

We report an analytic expression for transport cross sections (TCSs) calculated from the Dirac-Hartree-Fock potential for 92 elements (H to U) and electron...

Materials Data in the Internet Era - A Workshop on the Future

October 12, 2021

Author(s)

C P. Sturrock, J R. Rumble

In May 1999, ASTM E49 and the National Institute of Standards and Technology hosted a workshop in which over 100 international experts on materials data...

Lead-free Solder Alloys: NEMI Recommendation

October 12, 2021

Author(s)

E -. Bradley, C A. Handwerker, J -. Sohn

There has been substantial discussion worldwide in the electronics assembly community regarding the ideal composition for the primary lead-free alloy for use as...

The Ideal Gas Thermodynamics of Diesel Fuel Ingredients. I. Naphthalene Derivatives and Their Radicals

October 12, 2021

Author(s)

H Curran, C M. Wu, N Marinov, W J. Pitz, C K. Westbrook

The molecular fundamentals of 21 Naphthalene derivatives were investigaged, calculated, and evaluated, and their ideal gas thermodynamic properties were...

Stability in Thin Film Multilayers and Microlaminates: The Role of Free Energy, Structure, and Orientation at Interfaces and Grain Boundaries

October 12, 2021

Author(s)

A C. Lewis, Daniel Josell, Timothy P. Weihs

In polycrystalline multilayer systems, the free energies of the interfaces and grain boundaries will determine the relative stability of each layer as well as...

In-situ Microstructural Analysis of Cement Paste During Freezing. Part II: Computer Modeling

October 12, 2021

Author(s)

G M. Moss, Edward Garboczi, Hamlin M. Jennings

A combination of a three-dimensional hydration model and finite element analysis is used to simulate the microstructural behavior of cement paste during...

Effects of Aspect Ratio of Multi-Walled Carbon Nanotube on Flammability Properties of Polymer Nanocomposites

October 12, 2021

Author(s)

Bani Cipiriano, Takashi Kashiwagi, Srinivasa R. Raghavan, Ying Yang, E A. Grulke, Kazuya Yamammoto, John R. Shields, Jack F. Douglas

The effects of the aspect ratio of multi-walled carbon nanotube (MWNT) on viscoelastic properties and flammability properties of PS/MWNT nanocomposites are...

Was this page helpful?