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Journals

Pattern-directed to isotropic dewetting transition in polymer films on micropatterned surfaces with differential surface energy contrast

January 27, 2007

Author(s)

D Julthongpiput, Wenhua Zhang, Jack F. Douglas, Alamgir Karim, Michael J. Fasolka

Surface chemical patterns can both cause and direct dewetting in overlying thin films. However, a key factor in this behavior, the magnitude of surface energy

Contact Mechanics of Layered Elastic Materials: Experiment and Theory

January 26, 2007

Author(s)

P M. McGuiggan, Jay S. Wallace, Douglas T. Smith, I Sridhar, Z Zheng, K L. Johnson

This paper reports an experimental and theoretical investigation of the indentation of a layered elastic solid, with special reference to the surface force

Light Force in Ultracold Photoassociation

January 26, 2007

Author(s)

Eduardo Gomez, A T. Black, Lincoln Turner, Eite Tiesinga, Paul D. Lett

We study the time-resolved photoassociation of ultracold sodium in an optical dipole trap. The photoassociation laser excites pairs of atoms to molecular states

Leakage Effects in Microwave Power Measurements

January 26, 2007

Author(s)

Ronald A. Ginley, Denis X. LeGolvan, Ann F. Monke

Because microwave power measurements are used to support almost every segment of the microwave electronics industry, the accuracy of these measurements is

Experimental approaches for the study and application of supercritical fluids

January 25, 2007

Author(s)

Thomas J. Bruno

The design of any process involving supercritical fluids requires some degree of knowledge about the thermophysical and chemical properties of the solvents

NIST 4. Thermophysical Properties of Hydrocarbon Mixtures Database: Version 3.0

January 24, 2007

Author(s)

Marcia L. Huber

SUPERTRAPP version 3.0 is an interactive computer program for predicting thermodynamic and transport properties of pure fluids and fluid mixtures containing up

Optimal Quantum Measurements of Expectation Values of Observables

January 24, 2007

Author(s)

Emanuel Knill, Gerardo Ortiz, Rolando Somma

Experimental characterizations of a quantum system involve the measurement of expectation values of observables for a preparable state |f> of the quantum system

A High-Throughput Thermoelectric Power-Factor Screening Tool for Rapid Construction of Thermoelectric Property Diagrams

January 23, 2007

Author(s)

Makoto Otani, Nathan Lowhorn, Peter K. Schenck, Winnie K. Wong-Ng, Martin L. Green, K Itaka, H Koinuma

We have developed a high throughput screening tool that maps out thermoelectric power factors of combinatorial composition-spread film libraries. The screening

Direct Measurement of Cantilever Spring Constants and Correction of Cantilever Irregularities Using an Instrumented Indenter

January 22, 2007

Author(s)

Z C. Ying, Mark Reitsma, Richard S. Gates

A method is presented that allows direct measurement of a wide range of spring constants of cantilevers using an indentation instrument with an integrated

Influence of Oxygen Vacancies on the Dielectric Properties of Hafnia

January 22, 2007

Author(s)

Eric J. Cockayne

First-principles calculations were used to study the effects of neutral and 2+ charged oxygen vacancies on the dielectric properties of crystalline HfO2. In

Design and Spectroscopic Reflectometry Characterization of Pulsed Laser Deposition Combinatorial Libraries

January 22, 2007

Author(s)

Peter K. Schenck, Nabil Bassim, Makoto Otani, Hiroyuki Oguchi, Martin L. Green

The goal of the design of pulsed laser deposition (PLD) combinatorial library films is to optimize the compositional coverage of the films while maintaining a

Diameter Dependent Transport Properties of GaN Nanowire Field Effect Transistors

January 22, 2007

Author(s)

Abhishek Motayed, Mark D. Vaudin, A V. Davydov, J Meingalilis, Maoqi He, S. N. Mohammad

Experimental Densities, Vapor Pressures, and Critical Point, and a Fundamental Equation of State for Dimethyl Ether

January 22, 2007

Author(s)

E. Christian Ihmels, Eric Lemmon

Densities, vapor pressures, and the critical point were measured for dimethyl ether, thus filling several gaps in the thermodynamic data for this compound

Reduced Deadtime and Higher Rate Photon-Counting Detection Using a Multiplexed Detector Array

January 20, 2007

Author(s)

Stefania Castelletto, Ivo P. Degiovanni, V Schettini, Alan L. Migdall

We present a scheme for a photon-counting detection system that can be operated at incident photon rates higher than otherwise possible by suppressing the

Introduction to Journal of Modern Optics Special Issue on Single Photon: Sources, Detectors, Applications and Measurement Methods

January 20, 2007

Author(s)

J Cheung, Alan L. Migdall, Stefania Castelletto

In October 2005, a 2-day follow up workshop, Single photon: sources, detectors, applications and measurement methods, was held at the NPL (National Physical

Calibrating Photon-Counting Detectors to High Accuracy: Background and Deadtime Issues

January 20, 2007

Author(s)

Michael Ware, Alan L. Migdall, Joshua Bienfang, Sergey Polyakov

When photon-counting detectors are calibrated in the presence of a background signal, deadtime effects can be significant and must be carefully accounted for to

Phase Field Theory of Heterogeneous Crystal Nucleation

January 19, 2007

Author(s)

L Granasy, T Pusztai, D M. Saylor, James A. Warren

A phase field approach is developed to model wetting and heterogeneous crystal nucleation of an undercooled pure liquid in contact with a sharp wall. We discuss

Origins of switching field distributions in perpendicular magnetic nanodot arrays

January 19, 2007

Author(s)

Justin Shaw, William Rippard, Stephen E. Russek, Tim Reith, Charles M. Falco

We studied the reversal properties of perpendicularly magnetized Co/Pd nanodots from 100 to 50 nm in diameter fabricated using electron beam lithography

Detection of trace water vapor in high purity phosphine using cavity ring-down spectroscopy

January 18, 2007

Author(s)

H. H. Funke, Mark W. Raynor, Kristine A. Bertness, Yu-Hsuan Chen

The presence of trace water vapor in process gases such as phosphine, used for compound semiconductor epitaxial growth, can negatively affect the optical and

Charge Offset Stability in Tunable-Barrier Si SET Devices

January 17, 2007

Author(s)

Neil M. Zimmerman, Brian Simonds, Mikio Fujiwara, Yukinori Ono, Yasuo Takahashi, Hiroshi Inokawa

The problem of charge offset drift in single-electron tunneling devices, based on the Coulomb blockade, can preclude their useful application in metrology and

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

Stereoselective synthesis of a- and b-linked glucopyranosylamide derivatives via the in situ generation of glucosyl isoxazolines has been performed utilizing a

Analysis of C-S-H Gel and Cement Paste by Small-Angle Neutron Scattering

January 16, 2007

Author(s)

Andrew J. Allen, J Thomas

The role of small-angle x-ray and neutron scattering (SAXS and SANS) in the characterization of cement is briefly reviewed. The unique information obtainable

Composition and Density of Amorphous Calcium-Silicate-Hydrate in Cement

January 16, 2007

Author(s)

Andrew J. Allen, J Thomas, Hamlin M. Jennings

Despite intensive research for over a century, the main binding reaction product of cement hydration, calcium-silicate-hydrate (C-S-H) gel, is not fully

Measuring Molecular Order in Poly(3-alkylthiophene) Thin Films with Polarizing Spectroscopies

January 16, 2007

Author(s)

Marc Gurau, Dean DeLongchamp, Brandon M. Vogel, Eric K. Lin, Daniel A. Fischer, S Sambasivan, Lee J. Richter

We measured the molecular order of poly(3-alkylthiophene) chains in thin films before and after melting through the combination of several polarized photon

A Measurement of Propagation Delay

January 16, 2007

Author(s)

Donald R. Larson, Nicholas Paulter

A measurement method and associated uncertainty analysis have been developed for the measurement of propagation or group delay in electrical transmission lines

Study of the Packing Density and Molecular Orientation of Bimolecular Self-Assembled Monolayers of Aromatic and Aliphatic Organosilanes on Silica

January 16, 2007

Author(s)

M B. Smith, K Efimenko, Daniel A. Fischer, S E. Lappi, P K. Kilpatrick, Jan Genzer

Gradient Elution Moving Boundary Electrophoresis (GEMBE) for High-Throughput Multiplexed Microfluidic Devices

January 15, 2007

Author(s)

Jonathan G. Shackman, Matt S. Munson, David J. Ross

A novel method for performing electrophoretic separations is described - Gradient Elution Moving Boundary Electrophoresis (GEMBE). The technique utilizes the

A Comprehensive Evaluation of Indoor ranging using Ultra-Wideband Technology

January 15, 2007

Author(s)

Camillo Gentile, El Kik

Ultra-wideband technology shows promise for precision ranging due to its fine time resolution to resolve multipath fading and the presence of lower frequencies

Chemical Analysis of HfO22/ Si (100) Film Systems Exposed to NH3 Thermal Processing

January 15, 2007

Author(s)

Patrick S. Lysaght, Joseph Woicik, Daniel A. Fischer, G K. Bersuker, Joel Barnett, Brendan Foran, H . Tseng, Raj Jammy

Biaxial Stress Dependence of AlxGa_1-xAs Photoluminescence

January 13, 2007

Author(s)

Grady S. White, Albert J. Paul, Kristine A. Bertness, Lawrence H. Robins

A study was conducted of the room temperature photoluminescence behavior of AlxGa1-xAs as a function of tensile, equi-biaxial stress for x = 0, 0.198, 0.36, 0