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Journals

NIST Measurement Services That Support Optoelectronics

July 1, 2002

Author(s)

Sally S. Bruce, Christopher L. Cromer

The National Institute of Standards and Technology (NIST) offers a variety of hundreds of measurement services to its customers as a part of it's core mission...

Light Scattering by Slightly Nonspherical Particles on Surfaces

July 1, 2002

Author(s)

Thomas A. Germer

We investigate the shape dependence of the scattering by dielectric and metallic particles on surfaces by considering particles whose free-space scattering...

Effective-Scattering-Length Model of Ultracold Atomic Collisions and Feshbach Resonances in Tight Harmonic Traps

July 1, 2002

Author(s)

E L. Bolda, Eite Tiesinga, Paul S. Julienne

We consider the problem of cold atomic collisions in tight traps, where the absolute scattering length may be larger than the trap size. As long as the size of...

Working Group on Atomic Transition Probabilities

July 1, 2002

Author(s)

Wolfgang L. Wiese, Jeffrey R. Fuhr

A literature survey of experimental and theoretical work on atomic transition probabilities of astrophysical interest published during the last 3 years is...

Application Module Development Points in the Application Protocol

July 1, 2002

Author(s)

Allison Barnard Feeney

Two-Dimensional Simulation and Modeling in Scanning Electron Microscope Imaging and Metrology Research

July 1, 2002

Author(s)

Michael T. Postek, Andras Vladar, J R. Lowney, William J. Keery

Traditional Monte Carlo modeling of the electron beam specimen interactions in a scanning electron microscope (SEM) produces information about electron beam...

Two-dimensional Simulation Modeling in Imaging and Metrology Research

July 1, 2002

Author(s)

Michael T. Postek, Andras Vladar, J R. Lowney, William J. Keery

Traditional Monte Carlo modeling of the electron beam-specimen interactions in a scanning electron microscope (SEM) produces information about electron beam...

Formation of InAs/GaAs quantum dots by dewetting during cooling

July 1, 2002

Author(s)

Richard P. Mirin, Alexana Roshko, M. van der Puijl, Andrew G. Norman

We describe a method to form InAs quantum dots on GaAs by cooling an InAs film that is deposited at high substrate temperatures. The reflection high-energy...

NIST Standard Reference Database 23 - NIST Thermodynamic and Transport Properties REFPROP, Version 7.0

July 1, 2002

Author(s)

Eric W. Lemmon, Mark O. McLinden, Marcia L. Huber

Knowledge of the thermophysical properties is essential for the evaluation of alternative refrigerants and the design of equipment using them. The REFPROP...

Committee Reports for the 87th National Conference on Weights and Measures, July 14-18, 2002, Cincinnati, OH

July 1, 2002

Author(s)

H V. Oppermann, T L. Grimes

The 87th annual meeting of the National Conference on Weights and Measures will be held in Cincinnati, OH, July 14-18, 2002. The theme of the Conference is A...

Structure-Property Relationships in Pure and Acceptor-Doped Ba_(1-x)Sr_(x)Ti₍₃₎ Thin Films for Tunable Microwave Applications

July 1, 2002

Author(s)

Melanie W. Cole, P. C. Joshi, E. Ngo, C. Hubbard, M. Ervin, M. Wood, Richard G. Geyer

The influence of low concentration (1 mol%) Mg-doping on the structural, microstructural, surface morphological and dielectric properties of Ba (1-x)Srd(x)TiO...

Formation and Stabilization of Nanosize Grains in Ferromagnetic Thin Films by Dispersed C₆₀

July 1, 2002

Author(s)

L A. Zheng, E V. Barrera, Robert D. Shull

A self-assembly grain growth model is proposed to explain the recent observation of the formation of the uniform columnar nanosize grain structures in the...

Observation of Changes in the Atomic and Electronic Structure of Single-Crystal Yba₂Cu₃O_6.6 Accompanying Bromination

July 1, 2002

Author(s)

L M. Dieng, A Y. Ignalov, T A. Tyson, Mark Croft, A Dogan, C Y. Kim, Joseph Woicik, J Grow

To ascertain the role of bromination in the recovery of superconductivity in underdoped YBa 2Cu 3O 6+y (YBCO) we have performed polarized multiple-edge x-ray...

Some Issues in Particle Size and Size Distribution Characterization of Powders

July 1, 2002

Author(s)

Ajitkumar Jillavenkatesa, James F. Kelly, S J. Dapkunas

Size and size distribution measurement of powders are conducted using different techniques of size analysis.Underlying all these techniques are certain...

Fabricating Planar Nanoparticle Assemblies With Number Density Gradients

July 1, 2002

Author(s)

R R. Bhat, Daniel A. Fischer, Jan Genzer

We report on preparing assemblies of gold nanoparticles with continuous gradients in number density on flat silica-covered substrates. The methodology consists...

Observation of Changes in the Atomic and Electronic Structure of Single-Crystal Yba₂Cu₃O_6.6 Accompanying Bromination

July 1, 2002

Author(s)

L M. Dieng, T A. Tyson, Mark Croft, T Dogan, C Y. Kim, Joseph Woicik, J Grow, A Y. Ignatov

To understand the role of bromination in the recovery of superconductivity in underdoped YBCO, the spatially resolved local structural changes in brominated...

Existence of Weak Solutions to a Class of Nonstrictly Hyperbolic Conservation Laws With Non-Interacting Waves

July 1, 2002

Author(s)

Anthony J. Kearsley, A M. Reiff

Many applied problems resulting in hyperbolic conservation laws are nonstrictly hyperbolic. As of yet, there is no comprehensive theory to describe the...

Equilibrium Shape of Internal Cavities in Ruby and the Effect of Surface Energy Anistropy on the Equilibrium Shape

July 1, 2002

Author(s)

J S. Choi, D Y. Kim, B Hockey, Sheldon M. Wiederhorn, J Blendell, C A. Handwerker

vities formed in ruby (99.46Al2O3-0.54Cr2O3) by the healing and annealing of indentation cracks are more equiaxed than similar cavities in sapphire. Surface...

Structural Characterization of a Porous Low Dielectric Constant Thin Film With a Non Uniform Depth Profile

July 1, 2002

Author(s)

Eric K. Lin, V. J. Lee, G W. Lynn, Wen-Li Wu, M L. O'Neill

High resolution x-ray reflectivity (XR) and small angle neutron scattering (SANS) are applied to characterize both the non-uniform depth profile and pore...

High-Sensitivity Coherent Anti-Stokes Raman Scattering Microscopy With Two Tightly Synchronized Picosecond Lasers

July 1, 2002

Author(s)

E Potma, D J. Jones, J X. Cheng, X. Xie, Jun Ye

We demonstrate a significant improvement in signal-to-noise ratio in coherent anti stokes Raman Scattering (CARS) spectroscopy/microscopy, using two highly...

Ab Initio Calculation of KLV Auger Spectra in Si

July 1, 2002

Author(s)

E K. Chang, Eric L. Shirley

We present an ab initio Green's function formalizm for predicting CCV Auger spectra for solids. The formalizm takes into account core-hole screening final-state...

Dynamics in a Two-Level Atom Magneto-Optical Trap

July 1, 2002

Author(s)

X Xu, T Loftus, M J. Smith, John L. Hall, Alan Gallagher, Jun Ye

Alkaline earth metal atoms present an ideal platform for exploring magneto-optic trap (MOT) dynamics, enabling unique and definitive tests of laser cooling and...

Reference Lines in the Optogalvanic Spectra of Uranium and Thorium Over the Wavelength Range 694-755 nm

July 1, 2002

Author(s)

W DeGraffenreid, Craig J. Sansonetti

The optogalvanic spectra of uranium and thorium are convenient sources of lines to calibrate wavemeters for high resolution laser spectroscopy. Hollow-cathode...

Observation and Analysis of the Infrared Spectra of O₂-HF near 3950 cm^-1 and O₂-DF Near 2900 cm^-1

July 1, 2002

Author(s)

W M. Fawzy, C M. Lovejoy, David Nesbitt, Jon T. Hougen

Spectra were recorded in the H-F stretching region for both O2-HF and O2-DF, using a laser difference-frequency spectrometer coupled to a slit-nozzle expansion...

A Bose-Einstein Condensate in an Optical Lattice

July 1, 2002

Author(s)

J Denschlag, J E. Simsarian, H Heffner, C R. McKenzie, A Browaeys, D Cho, Kristian Helmerson, S L. Rolston, William D. Phillips

We have performed a number of experiments with a Bose-Einstein condensate (BEC) in a one dimensional optical lattice. Making use of the small momentum spread of...

Radiometric Measurement Comparisons at NASA's Goddard Space Flight Center: Part II. Irradiance Lamp Comparisons and the NIST Sphere Source

July 1, 2002

Author(s)

James J. Butler, B. Carol Johnson, R Barnes

The National Aeronautics and Space Administration (NASA) and the National Institute of Standards and Technology (NIST) are engaged in a program designed to...

Creation of a Molecular Condensate by Dynamically Melting a Mott Insulator

July 1, 2002

Author(s)

D Jaksch, V Venturi, J I. Cirac, Carl J. Williams, W.H. Zoller

We propose creation of a molecular Bose-Einstein condensate (BEC) by loading an atomic BEC into an optical lattice and driving it into a Mott insulator (MI)...

Kinetics and Mechanism of Hydroxyl Radical and OH-adduct Radical Reactions with Nitroxides and With Their Hydroxylamines

July 1, 2002

Author(s)

A Samuni, A Russo, J B. Mitchell, M C. Krishna, Pedatsur Neta, S Goldstein

The stable nitroxide radicals, such as 2,2,6,6-tetramethylpiperidinoxyl (TPO) and 4-OH-2,2,6,6-tetramethylpiperidinoxyl (TPL), are potent antioxidants and among...

Simulation and Prediction of Hardness Performance of Rockwell Diamond Indenters Using Finite Element Analysis

July 1, 2002

Author(s)

Li Ma, Samuel Low, Hui Zhou, Jun-Feng Song, R Dewit

A New Analytical Model of Shared Backup Path Provisioning in GMPLS Networks

July 1, 2002

Author(s)

Sanghun Lee, David W. Griffith, N-O Song

As GMPLS and its supporting set of protocols develop into aviable control plane for optical networks, an important function that they will need to support will...

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