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Journals

Low-Coherence Interferometric Measurements of the Dispersion of Multiple Fiber Bragg Gratings

March 1, 2001

Author(s)

Shellee D. Dyer, Kent B. Rochford

We show that the dispersion of multiple fiber Bragg gratings can be obtained from a single low-coherence interferometric measurement. The individual gratings...

Small Area Y-Ba-Cu-O Thin Films for Applications in Hot-electron Bolometers

March 1, 2001

Author(s)

Leila R. Vale, Ronald H. Ono

Optical Metrology for Wavelength-Division-Multiplexed Fiber Communications

March 1, 2001

Author(s)

Sarah L. Gilbert, Shellee D. Dyer, Paul A. Williams, Allen Rose

In response to rapid changes in fiber-optic technology, the Optoelectronics Division of the National Institute of Standards and Technology has been developing...

Characterization and Production Metrology of Thin Transistor Gate Dielectric Films

March 1, 2001

Author(s)

W Chism, Alain C. Diebold, J Canterbury, Curt A. Richter

Hysteresis in Transport Critical-Current Measurements of Oxide Superconductors

March 1, 2001

Author(s)

Loren F. Goodrich, Theodore C. Stauffer

We have investigated magnetic hysteresis in transport critical-current (I c) measurements of Ag-matrix (Bi, Pb) 2Sr 2Ca 2Cu 3O 10-x (Bi-2223) and AgMg-matrix Bi...

Time Dependent Breakdown of Ultra-Thin Gate Dielectrics Under Pulsed Biased Stress

March 1, 2001

Author(s)

Bin Wang, John S. Suehle, Eric M. Vogel, J B. Bernstein

Ultra-thin SiO 2 films (t ox 2.0 nm) were stressed under DC, unipolar, and bipolar pulsed bias conditions up to a pulse repetition frequency of 50 kHz. The time...

SQUID Operational Amplifier

March 1, 2001

Author(s)

Kent D. Irwin, Martin Huber

The nonlinear response of Superconducting Quantum Interface Devices (SQUIDs) has limited their usefulness. We propose the SQUID Operational Amplifier, which...

Application of Microcalorimeter Energy Measurement to Biopolymer Mass Spectrometry

March 1, 2001

Author(s)

B. Neuhauser, Gene C. Hilton, John M. Martinis

We have performed electrospray ionization mass spectrometry of proteins, detecting the ions with a normal-insulator-superconductor microcalorimeter detector. We...

Microfabricated Transition-Edge X-ray Detectors

March 1, 2001

Author(s)

Gene C. Hilton, John M. Martinis, Kent D. Irwin, Norman F. Bergren, David A. Wollman, Martin Huber, Sae Woo Nam

We are developing high performance x-ray detectors based on superconducting transition-edge sensors (TES) for application in materials analysis and astronomy...

Block Copolymer Thin Films: Physics and Applications

February 15, 2001

Author(s)

Michael J. Fasolka, A M. Mayes

A two-part review of research concerning block copolymer thin films is presented. The first section summarizes experimental and theoretical studies of the...

Imaging and Autocorrelation of Ultrafast Infrared Laser Pulses in the 3-11 υ Range With Silcon CCD Cameras and Photodiodes

February 15, 2001

Author(s)

Kimberly A. Briggman, Lee J. Richter, John C. Stephenson

Standard silicon photodiodes and CCD cameras are convenient and inexpensive alternatives to cryogenically cooled diodes or arrays for autocorrelation and...

Stability of Diamond Turning Processes That Use Round Nosed Tools?

February 12, 2001

Author(s)

David E. Gilsinn, B Balachandran, Matthew A. Davies

In this article, a multi-mode model is developed for a diamond-turning process which takes into account the cutting forces that result from the geometry of the...

Saturated-Liquid Viscosity of Ten Binary and Ternary Alternative Refrigerant Mixtures. Part 1: Measurements

February 10, 2001

Author(s)

Arno R. Laesecke, R F. Hafer, Dylan Morris

The saturated liquid viscosity of ten binary and ternary refrigerant mixtures composed of difluoromethane (R32, 1,1,1,2-tetrafluoroethane (R134a)...

Wetting of Methanol on the n-Alkanes: Observation of Short-Range Critical Wetting

February 8, 2001

Author(s)

David J. Ross, D Bonn, J Meunier

We present results of the wetting properties of methanol at the liquid-vapor interface of different n-alkanes ranging from hexane to undecane. Measurement of...

Characterization and Production Metrology of Gate Dielectric Films: Optical Models for Oxynitrides and High Dielectric Constant Films

February 6, 2001

Author(s)

Alain C. Diebold, J Canterbury, W Chism, Curt A. Richter, Nhan Van Nguyen, James R. Ehrstein, C E. Weintraub

Magneto-Optic Kerr Effect Study of a Two-Step Reorientation Transition of an Ultrathin Magnetic Film

February 5, 2001

Author(s)

C S. Arnold, David P. Pappas, A P. Popov

The magnetic reorientation transition for ultrathin Fe films on Gd is studied. At low temperatures, the films are magnetized in plane and at intermediate...

Normal Modes for a Stratified Viscous fluid Layer

February 2, 2001

Author(s)

Katharine F. Gurski, R L. Pego

We consider internal gravity waves in a stratified fluid layer with rigid horizontal boundaries and periodic boundary conditions on the sides at constant...

Fluid Property Effects on Sheet Disintegration of a Simplex Pressure-Swirl Atomizer

February 2, 2001

Author(s)

I. P. Chung, Cary Presser

Determination of sulfur in fossil fuels by isotope dilution electrothermal vaporization inductively coupled plasma mass spectrometry

February 1, 2001

Author(s)

Lee L. Yu, William R. Kelly, John D. Fassett, Robert D. Vocke Jr.

Alignment of Noisy Signals

February 1, 2001

Author(s)

Kevin J. Coakley, Paul D. Hale

We study the relative performance of various methods for aligning noisy one dimensional signals. In each method, we estimate the relative shifts of a set of...

The Influence of Mineral Admixtures on the Rheology of Cement Paste and Concrete

February 1, 2001

Author(s)

Chiara F. Ferraris, K H. Obla, R Hill

Rheological tests on cement paste were used to successfully select the type and dosage of mineral admixtures that improved concrete workability. Among the six...

Genotyping of Two Mutations in the HFE Gene Using Single-Base Extension and High-Performance Liquid Chromatography

February 1, 2001

Author(s)

J. M. Devaney, E. L. Pettit, S. G. Kaler, Peter M. Vallone, John M. Butler, M. A. Marino

Nonequilibrium Theory of Scanning Tunneling Spectroscopy via Adsorbate Resonances: Nonmagnetic and Kondo Impurities

February 1, 2001

Author(s)

M Plihal, John William Gadzuk

We report on a fully nonequilibrium theory of the scanning tunneling microscopy (STM) through resonances induced by impurity atoms adsorbed on metal surfaces...

Surface Oxidation as a Diffusion Barrier for Aluminum Deposited on Ferromagnetic Metals

February 1, 2001

Author(s)

William F. Egelhoff Jr., P. J. Chen, Robert D. McMichael, Cedric J. Powell, R Deslattes, F. G. Serpa, Romel D. Gomez

Laminar Flow of Four Gases Through a Helical Rectangular Duct

February 1, 2001

Author(s)

Robert F. Berg, S A. Tison

We report measurements and a model of gas flow through a helical duct of rectangular cross section. The measurements on helium, nitrogen, argon, and sulfur...

How Interoperability Saves Money

February 1, 2001

Author(s)

Robert E. Chapman

The pressures of competing in the global marketplace are forcing building control companies, equipment and systems manufacturers, energy providers, utiliites...

Development of a Procedure for Measuring Nitrogen by Cold Neutron Prompt Gamma-ray Activation Analysis

February 1, 2001

Author(s)

Rick L. Paul

Capillary Electrophoresis as a Tool for Optimization of Multiplex PCR Reactions

February 1, 2001

Author(s)

John M. Butler, C M. Ruitberg, Peter M. Vallone

Copying multiple regions of a DNA molecule is routinely performed today using the polymerase chain reaction (PCR) in a process commonly referred to as multiplex...

Application of the Hilbert-Huang Transform to Machine Tool Condition/Health Monitoring

February 1, 2001

Author(s)

Gary G. Leisk, Nelson N. Hsu, N E. Huang

Machine tools generate significant vibration levels during operation due to the dynamic nature of the machine and cutting process. With appropriate vibration...

Fiber Optic Flow and Cure Sensing for Liquid Composite Molding

February 1, 2001

Author(s)

Joy P. Dunkers, Joseph~undefined~undefined~undefined~undefined~undefined Lenhart, S R. Kueh, J H. VanZanten, S G. Advani, Richard~undefined~undefined~undefined~undefined~undefined Parnas

The Polymer Composites group at the National Institute of Standards and Technology has efforts in both on-line flow and cure sensing for liquid composite...

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