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

Sharp Interface Limit of a Phase-Field Model of Crystal Grains

May 1, 2001

Author(s)

A E. Lobkovsky, James A. Warren

We analyze a two-dimensional phase field model designed to describe the dynamics of crystalline grains. The phenomenological free energy is a function of a...

Evaluating Optical Materials

May 1, 2001

Author(s)

Charles S. Tarrio, Thomas B. Lucatorto

curately quantifying optical constants is key to fabricating successful multiplayer film components

Orientation Imaging and Reorientation Dynamics of Single Dye Molecules

May 1, 2001

Author(s)

K D. Weston, Lori S. Goldner

Polarization modulation is used with confocal microscopy to measure the absorption dipole orientation and reorientation dynamics of individual dye molecules...

Accurate Lifetimes and Absolute Transition Rates for Ultraviolet Transitions From 3d⁵ (⁴G) 4p and 3d⁵ (⁴P) 4p levels in Mn II

May 1, 2001

Author(s)

R Kling, R Schnabel, Ulf Griesmann

A novel laser-induced fluorescence technique was used to measure lifetimes of 14 3d5 (4G) 4p and 3d5(4P) 4p levels in the Mn+ ion. Branching fractions for...

The Atom Laser

May 1, 2001

Author(s)

S L. Rolston

This paper reviews the principles of atom laser action using Bose-Einstein condensed gases as sources of coherent matter waves.

Torsional Splittings in Small-Amplitude Vibrational Fundamental States of Methanol-Type Molecules

May 1, 2001

Author(s)

Jon T. Hougen

Group-theoretical methods are used to show that inverted torsional splittings in fundamental levels of small-amplitude vibrations of methanol-like molecules can...

Evanescent Wave Cavity Ring-down Spectroscopy: A Future Technology for Process Sensing

May 1, 2001

Author(s)

A C. Pipino, Joseph T. Hodges

Evanescent wave cavity ring-down spectroscopy (EW-CRDS) is described. The total internal reflection (TIR)-ring and monolithic folded cavity designs are briefly...

Reliable Solubility Data in the Age of Computerized Chemistry: Why, How and When?

May 1, 2001

Author(s)

J R. Rumble, Angela Y. Lee, D M. Blakeslee, S L. Young

Since 1979, International Union of Pure and Chemistry (IIUPAC) Commission V.8 on Solubility Data has published over 70 compilations of evaluated data on the...

Electromagnetic Shielding Characteristics of Optical Fiber Feedthroughs

May 1, 2001

Author(s)

Keith D. Masterson, David R. Novotny, Galen H. Koepke

A Phase-Field Model With Convection: Sharp-Interface Asymptotics

May 1, 2001

Author(s)

D M. Anderson, Geoffrey B. McFadden, A A. Wheeler

We have previously developed a phase-field model of solidification that includes convection in the melt. This model represents the two phases as viscous liquids...

Silicoboron-Carbonitride Ceramics: A Class of High Temperature, Dopable Electronic Materials

May 1, 2001

Author(s)

P A. Ramakrishnan, Y T. Wang, Davor Balzar, L A. An, C Haluschka, R Riedel, A M. Hermann

The structure and electronic properties of polymer-derived silicoboroncarbonitride ceramics are reported. Analysis of the short-range order using the radial...

Growth and Characterization of Large Area Cu(In, Ga) Se₂ Films

May 1, 2001

Author(s)

A M. Hermann, Carlos A. Gonzalez, P A. Ramakrishnan, Davor Balzar, C H. Marshall, J N. Hilfiker, T Tiwald

Large area thin films of Cu(In,Ga)Se 2 (CIGS) were grown by sequential sputtering. Photovoltaic cells have been fabricated using these films and the performance...

Cracking of Porcelain Coatings Bonded to Metal Substrates of Different Modulus and Hardness

May 1, 2001

Author(s)

H Zhao, X Z. Hu, M T. Bush, Brian R. Lawn

A preceding study of contact damage in a bilayer system consisting of a porcelain coating on a stiff Pd-alloy substrate is here expanded to investigate the role...

Multiple Lateral Length Scales in Phase-Separating Thin Film Polymer Blends

May 1, 2001

Author(s)

Haonan Wang, R J. Composto, Erik K. Hobbie, Charles C. Han

The interplay of phase separation, preferential wetting, and capillary instability in thin film polymer blends is investigated using composition-profiling and...

Chemical Mapping of Patterned Polymer Photoresists by Near-Field Infrared Microscopy

May 1, 2001

Author(s)

B Dragnea, J Preusser, J Szarko, L A. McDonough, S R. Leone, W D. Hinsberg

Latent images obtained by deep-ultraviolet (DUV) patterning and post-exposure bake in the polymer system poly(t-butylmethacrylate) resist/triphenyl sulfonium...

Defect Controlled Diffusion in the Epitaxial Growth of Germanium on Si(100)

May 1, 2001

Author(s)

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

The growth of germanium films on Si(100) substrates prepared by two different methods is studied using atomic force microscopy and reflection high energy...

Molecular Fluorescence in the Vicinity of a Nanoscopic Probe

May 1, 2001

Author(s)

H F. Hamann, M Kuno, Alan Gallagher, David Nesbitt

The dramatic modifications of molecular fluorescence in the proximity of a sharp nanoscopic probe is investigated by an apertureless or antenna-based near-field...

Electron-Hole Correlations in Semiconductor Quantum Dots With Tight-Binding Wave Functions

May 1, 2001

Author(s)

S Lee, P. Jonsson, J W. Wilkins, Garnett W. Bryant, G Klimeck

The electron-hole states of semiconductor quantum dots are investigated within the framework of empirical tigh-binding descriptions for Si, as an example of an...

Electron and Nuclear Spin Interactions in the Optical Spectra of Single GaAs Quantum Dots

May 1, 2001

Author(s)

R W. Gammon, A L. Efros, T A. Kennedy, M Rosen, D S. Katzer, D Park, Steven W. Brown, V L. Korenev, I A. Merkulov

Fine and hyperfine splittings arising from electron, hole and nuclear spin interactions in the magneto-optical spectra of indivisual localized excitons are...

Coordinate-Space Approach to the Bound-Electron Self-Energy: Self-Energy Screening Calculation

May 1, 2001

Author(s)

Paul Indelicato, Peter Mohr

The self-energy screening correction is evaluated in a model in which the effect of the screening electron is represented as a first-order perturbation of the...

A Common-Path Heterodyne Interferometer for Surface Profiling in Microelectronic Fabrication

May 1, 2001

Author(s)

E J. Klein, A P. Ramirez, John L. Hall

We describe the design of a common-path heterodyne laser interferometer for the surface profiling of micron-sized photopatterned features during the...

Lifetimes, Branching Fractions, and Oscillator Strengths of Doubly Ionized Tungsten

May 1, 2001

Author(s)

M Schultz-Johanning, R Kling, R Schnabel, M Kock, ZZ Li, H Lundberg, S Johansson

A first set of W III oscillator strengths has been obtained from combined lifetime and brancing fraction measurements. The branching fractions in the wavelength...

Controlled Collapse of a Bose-Einstein Condensate

May 1, 2001

Author(s)

J L. Roberts, N R. Claussen, S L. Cornish, E A. Donley, Eric A. Cornell, C E. Wieman

The point of instability of a Bose-Einstein condensate (BEC) due to attractive interactions was studied. Stable 85Rb BECs were created and then caused to...

Rotational Spectrum of Sarin

May 1, 2001

Author(s)

H Walker, R D. Suenram, A C. Samuels, J O. Jensen, M W. Ellzy, J M. Lochner, D Zeroka

To demostrate the possibilities of using molecular-beam Fourier-transform microwave spectroscopy as a measurement technique to unambiguously detect and monitor...

An Object-Oriented Manufacturing Process Model for Preliminary Design and Process Planning Integration

May 1, 2001

Author(s)

Shaw C. Feng, Eugene Song

An open, neutral manufacturing process object model has been developed. The main purpose is to enable software interoperability between manufacturing...

Effects of Nonlinear Diode Junction Capacitance on the Nose-to-Nose Calibration

May 1, 2001

Author(s)

Kate Remley, Dylan Williams, Donald C. DeGroot, Jan Verspecht, John Kerley

We examine the effects of nonlinear diode junction capacitance on the fundamental premise of the noise-to-nose calibration, that the kickout is identical in...

Surface Analysis Studies of Yield Enhancements in Secondary Ion Mass Spectrometry by Polyatomic Projectiles

May 1, 2001

Author(s)

E Fuoco, J Greg Gillen, M Wijesundara, William E. Wallace, L Hanley

In this paper examine the mechanism of secondary ion yield enhancements previously observed for polyatomic projectiles by measuring the weight loss, volume loss...

Computational Study of the Reactions of Methane with XO Radicals (X = F, Cl, or Br): Implications in Combustion Chemistry

May 1, 2001

Author(s)

F Louis, Thomas C. Allison, Carlos A. Gonzalez, J P. Sawerysyn

Theoretical calculations were carried out on the H-atom abstraction reaction from methane by XO (X = F, Cl or Br) radicals attack. Geometry optimizations and...

Measurement and Application of ¹H-¹⁹F Dipolar Couplings in the Structure Determination of 2'-Fluorolabeled RNA

May 1, 2001

Author(s)

B. Luy, John Marino

Residual dipolar couplings can provide powerful restraints for determination and refinement of the solution structure of macromolecules. The application of...

Copper-Catalyzed Radiolytic Reduction of CO₂ to CO in Aqueous Solutions

May 1, 2001

Author(s)

J Grodkowski, Pedatsur Neta

Radiolysis of aqueous solutions containing CO 2 and Cu(II) ions under reducing conditions leads first to reduction of the Cu(II) and then to formation of CO...

Was this page helpful?