An official website of the United States government
Here’s how you know
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.
Karen E. Murphy, Michele M. Schantz, Therese A. Butler, Bruce A. Benner Jr, Laura J. Wood, Gregory C. Turk
A procedure based on isotope dilution gas chromatography/mass spectrometry (ID GC/MS) has been developed for the accurate and rapid determination of cyanide (CN...
The effects of co-monomer composition and irradiation time on material properties and cell response were determined using high-throughput and combinatorial...
Robust quantum computation with d-level quantum systems (qudits) poses two requirements: fast, parallel quantum gates and high fidelity two-qudit gates. We...
Thomas Gerrits, Thomas J. Silva, Hugo A. van den Berg, Theo Rasing
We present a method for simultaneous measuring the two normalized in-plane magnetization components in magnetic thin films that allows for the reconstruction of...
T W. Kee, Hongxia (Jessica) Zhao, Marcus T. Cicerone
We introduce an interferometric technique for eliminating the nonresonant background of broadband coherent anti-Stokes Raman scattering (CARS) microscopy. CARS...
Thomas Gerrits, Michael Schneider, Anthony B. Kos, Thomas J. Silva
A time-resolved ferromagnetic resonance technique was used to investigate the nonlinear magnetization dynamics of a 10 nm thin Permalloy TM film in response to...
Brian J. Polk, Anna Stelzenmuller, Geraldine I. Mijares, William A. MacCrehan, Michael Gaitan
A method for fabricating Ag/AgCl planar microelectrodes for microfluidic applications is presented. Microreference electrodes enable accurate measurements with...
In studies of various nonlinear optical phenomena, strong resonant features in the atomic or molecular response to multi-photon driven processes have been used...
S. M. Cook, T. E. Schaffer, K. M. Chynoweth, M. Wigton, Raymond Simmonds, Kristine Lang
Measurement of atomic force microscope cantilever spring constants (k) is essential for many of the applications of this versatile instrument. Numerous...
M I. Al-Sheikhly, Dianne L. Poster, Jung-Chul An, Pedatsur Neta, Joseph Silverman, Robert E. Huie
Pulse radiolysis with spectrophotometric and conductometric detection was utilized to study the formation and reactions of radicals from benzene and dienes in...
Lane C. Sander, Katherine E. Sharpless, Stephen A. Wise
A new category of Standard Reference Materials based on dietary supplements are under development by NIST, with certified values for organic constituents and...
A study is made of median crack evolution in brittle coatings subjected to sharp contacts. A model bilayer system consisting of a glass plate bonded to a...
Emmanouel S. Hourdakis, Brian Simonds, Neil M. Zimmerman
We have developed a new method for measuring the value of breakdown voltage in air for electrode separations from 400 nm to 45 'm. The electrodes used were thin...
Adriaan C. Carter, Raju V. Datla, Timothy M. Jung, Allan W. Smith, James A. Fedchak
The Low Background Infrared (LBIR) facility at the National Institute of Standards and Technology (NIST) has performed 10 calibrations of low-background...
Joseph P. Rice, Steven W. Brown, Bettye C. Johnson, Jorge E. Neira
We describe a new type of Calibrated Hyperspectral Image Projector (CHIP) intended for radiometric testing of instruments ranging from complex hyperspectral or...
James A. Fedchak, Adriaan C. Carter, Raju V. Datla
The Low Background Infrared calibration (LBIR) facility at the National Institute of Standards and Technology (NIST) is developing a relative aperture area...
Stefania Castelletto, Ivo P. Degiovanni, V Schettini, Alan L. Migdall
We explore the feasibility of using high-efficiency periodically-poled crystals to produce photon pairs for photon-counting detector calibrations at 1550 nm...
A solar energy experiment that estimates the number of photovoltaic panels needed to provide supplemental power for a typical residence is described. The...
Cynthia H. Reed, Steven J. Emmerich, Steven J. Nabinger
As part of an ongoing effort to better understand the performance of indoor air cleaners in buildings, the National Institute of Standards and Technology (NIST)...
K D. Ridge, N G. Abdulaev, Xi-Cheng Zhang, T Ngo, D M. Brabazon, John P. Marino
Solution NMR studies of a 15N-labeled G-protein ?-subunit (G?) chimera (15N-ChiT) reconstituted heterotrimer have previously shown that binding of ??-subunits...
We show that in realistic time-domain measurements of a Poisson two-level system, the observed transition rates are renormalized downwards due to the finite...
Limin Sun, Hockin D. Xu, Shozo Takagi, Laurence C. Chow
Calcium phosphate cement (CPC) can self-harden in vivo to form hydroxyapatite with excellent osteoconductivity. In recent studies, CPC-chitosan composites were...
We demonstrate a coherent lidar that uses a broadband femtosecond fiber laser as a source and resolves the returning heterodyne signal into N spectral channels...
D Y. Petrovykh, H Y. Kimura-Suda, A Opdahl, Lee J. Richter, Michael J. Tarlov, L J. Whitman
We have studied the formation of self-assembled monolayers (SAMs) of n-alkanethiols on platinum thin films using X-ray photoelectron spectroscopy (XPS)...
Forrest A. Landis, J S. Stephens, James A. Cooper, Sheng Lin-Gibson
Model tissue engineering scaffolds based on photocurable resin mixtures with sodium chloride have been prepared for optical imaging studies of cell attachment...
We investigate the influence of high-order dispersion and nonlinearity on the propagation of ultraslow optical solitons in a lifetime broadened four-state...