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Journals

Suppression of Lateral Phase Separation in Thin Polyolefin Blend Films

March 1, 2001

Author(s)

Y A. Akpalu, Alamgir Karim, Sushil K. Satija, N P. Balsara

The effectiveness of a compatibilizer in suppressing lateral phase separation in thin polyolefin blend films is investigated as a function offilm thickness and...

Studying the Buried Interfacial Region With an Immobilized Fluorescence Probe

March 1, 2001

Author(s)

Joseph~undefined~undefined~undefined~undefined~undefined Lenhart, J H. VanZanten, Joy Dunkers, Richard~undefined~undefined~undefined~undefined~undefined Parnas

The properties of a buried epoxy / glass interfacial region were studied by covalently grafting a fluorescent probe to the glass surface. A dimethyl-amino...

Absolute Transition Rates for Transitions From 5p Levels in Kr II

March 1, 2001

Author(s)

Krzysztof Dzierzega, Ulf Griesmann, Gillian Nave, L Bratasz

Branching ratios were measured for 155 electric dipole transitions from 5p and 5p1 levels of singly ionized Kr between 200 nm and 2400 nm. Of these, 83 were...

Differential Scattering Dynamics of F + CH₄ -> HF(v,J) + CH₃ Via High-Resolution IR Laser Dopplerimetry

March 1, 2001

Author(s)

W W. Harper, S A. Nizkorodov, David Nesbitt

Produce recoil data from F+ CH 4 -> HF(v,J)+ CH 3 reactive scattering are obtained using crossed supersonic jets and narrow band (δv = 0.0001cm -1) IR laser...

Equilibrium Constant of the Reaction OH + HNO₃ } H₂O + NO₃ in Aqueous Solution

March 1, 2001

Author(s)

G A. Poskrebyshev, Pedatsur Neta, Robert E. Huie

The equilibrium reaction OH + HNO 3 } H 2O + NO 3 was investigated by pulse radiolysis in aqueous solutions. An estimate of the equilibrium constant was derived...

Mechanisms and Measurement of Oxidative Damage to DNA

March 1, 2001

Author(s)

M. Dizdaroglu, Pawel Jaruga, H Rodriguez

Free radicals are produced in cells by normal metabolism and by exogenous sources. These species cause oxidative damage to DNA and generate multiple products...

A Foundation for Interoperability in Next-Generation Product Development Systems

March 1, 2001

Author(s)

Simon Szykman, Steven Shooter, Steven J. Fenves, Walid Keirouz

U.S. industry spends billions of dollars as a result of poor interoperability between computer-aided engineering software tools. While ongoing standards...

On-Wafer Measurements of Nonlinear Effects in High Temperature Superconductors

March 1, 2001

Author(s)

James Booth, Leila R. Vale, Ronald H. Ono

We present the results of comprehensive on-wafer microwave probe station measurements of the nonlinear properties of coplanar waveguide devices patterned from...

Transition Edge Sensor Array Development

March 1, 2001

Author(s)

Steven Deiker, James A. Chervenak, Gene C. Hilton, Kent D. Irwin, John M. Martinis, Sae Woo Nam, David A. Wollman

NIST is fabricating multi-pixel arrays of our transition edge sensor (TES) microcalorimeter detectors for use in microanalysis and x-ray astrophysics. We have...

DC SQUID Series Array Amplifiers with 120 MHz Bandwidth

March 1, 2001

Author(s)

Martin Huber, Patricia A. Neil, R. G. Benson, D. A. Burns, A. M. Corey, C. S. Flynn, Y. Kitaygorodskaya, O. Massihzadeh, John M. Martinis, Gene C. Hilton

We report on the performance of dc SQUID (Superconducting Quantum Interference Device) series array amplifiers from dc to 500 MHz. The arrays consist of up...

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...

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