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Small-Angle Neutron Scattering (SANS) is a powerful nondestructive technique that can measure simultaneously macroscopic compressibilities of solutions, overall
Molar heat capacities at constant volume (C v) were measured with an adiabatic calorimeter for pure isobutane. The high purity of the samples was verified by
We demonstrate an all-fiber photon pair source for the critical telecom C-band. We achieve high pair generation rates in excess of 10 MHz while maintaining
John D. Jost, Jonathan Home, Jason Amini, David Hanneke, R. Ozeri, Christopher Langer, John J. Bollinger, Dietrich G. Leibfried, David J. Wineland
Quantum mechanics describes the state and evolution of isolated systems, where entangled and superposition states can be created. Its application to large
Nadine E. Gergel-Hackett, Behrang H. Hamadani, B Dunlap, John S. Suehle, Curt A. Richter, Christina A. Hacker, David J. Gundlach
We have fabricated physically flexible nonvolatile memory devices using inexpensive, room-temperature, solution processing. The behavior of these devices is
We have extended the application of quantum-based electrical standards from single frequency calibrations to multi-tone tests that can be used to characterize
NIST is optimizing the design of a 10 V programmable Josephson voltage standard so that it uses less microwave power by use of fewer parallel-biased arrays with
This Letter addresses the calculation of molar mass and related quantities in the New SI currently under discussion by the International Committee for Weights
We have fabricated nonlinear transmission lines and resonators that incorporate both distributed nonlinear capacitance and distributed nonlinear inductance in
Franz Mueller, Ralf Behr, T. Weimann, Luis Palafox, David I. Olaya, Paul Dresselhaus, Samuel Benz
Programmable Josephson voltage standards (PJVSs) in combination with fast switchable DC current sources have opened up new applications in the field of low
Mike Elsbury, Charles J. Burroughs, Paul Dresselhaus, Zoya Popovic, Samuel Benz
Improvements to the packaging of Josephson Volt- age Standard (JVS) circuits have increased operating margins, reliability, and longevity of these systems. By
David I. Olaya, Paul Dresselhaus, Samuel Benz, Jon E. Bjarnason, Erich N. Grossman
Amorphous Nb-Si has been previously demonstrated as a Josephson junction barrier material for Nb-based superconducting voltage standard circuits, including both
John T. Woodward IV, Allan W. Smith, Colleen A. Jenkins, Chungsan Lin, Steven W. Brown, Keith R. Lykke
Supercontinuum (SC) sources are novel laser-based sources that generate a broad, white-light continuum in single mode photonic crystal fibers. Currently, up to
George P. Eppeldauer, Howard W. Yoon, Yuqin Zong, Thomas C. Larason, Allan W. Smith, M. Racz
A sphere-input transfer-standard detector has been developed to calibrate detectors and radiometers for absolute spectral power, irradiance, and radiance
George P. Eppeldauer, Jinan Zeng, Howard W. Yoon, Boris Wilthan, Thomas C. Larason, Leonard M. Hanssen
Routine NIST spectral responsivity calibrations are needed for the infrared range. Low NEP pyroelectric radiometers have been developed for traditional
Allan W. Smith, John T. Woodward IV, Colleen A. Jenkins, Steven W. Brown, Keith R. Lykke
Absolute stellar photometry is based on 1970s terrestrial measurements of the star Vega with instruments calibrated using the Planckian radiance from a Cu fixed
Daniel A. Fischer, K E. Sohn, M D. Dimitriou, Jan Genzer, C Hawker, E. J. Kramer
Depth profiling using near-edge X-ray absorption fine structure (NEXAFS) spectroscopy was used to determine the carbon atom density as a function of depth by
Daniel A. Fischer, Saloman Turgman-Cohen, Mathew Smith, P K. Kilpatrick, Jan Genzer
The adsorption of asphaltenes onto flat solid surfaces modified with mixed self-assembled monolayers (SAMs) of aliphatic and aromatic trichlorosilanes with
Boris Khlevnoy, Victor Sapritsky, Bernard Rougie, Charles E. Gibson, Howard Yoon, Arnold A. Gaertner, Dieter Taubert, Juergen Hartmann
In 1997, the Consultative Committee for Photometry and Radiometry (CCPR) initiated a supplementary comparison of spectral radiance in the wavelength range from
After the Gaussian distribution, the probability distribution most commonly used in evaluating uncertainty in measurement is the rectangular distribution. When
Naomi Eidelman, A Colorni, Jirun Sun, M.C. Fishbein, A Diamant
A case of myocardial calcification is described in the Mediterranean white grouper, Epinephelus aeneus, cultured as broodstock in Eilat (Israel, Red Sea). Large
Brian Estey, James A. Beall, Gene C. Hilton, Kent D. Irwin, Daniel R. Schmidt, Joel N. Ullom, Robert E. Schwall
Mass Spectrometry is widely used for protein characterization, structural virology, drug discovery, and clinical chemistry. However the detection efficiency of
Christopher W. Meyer, W Wyatt Miller, Dean C. Ripple, Gregory E. Scace
A new humidity generator has been constructed at the National Institute of Standards and Technology and is now fully operational. The NIST Hybrid Humidity
Jay H. Hendricks, Jacob R. Ricker, Justin H. Chow, Douglas A. Olson
The National Institute of Standards and Technology (NIST) Low Pressure Manometry Laboratory maintains national pressure standards ranging from 1 mPa to 360 kPa
Measurements of soot concentration and soot mass were performed in microgravity conditions for hexane, heptane, nonane, and decane droplets burning in air at
Dazhen Gu, Fernando Rodriquez-Morales, Sigfrid Yngvesson
We report a coplanar waveguide notch filter with an integrated air-bridge, designed for operation at sub-millimeter wave frequencies and cryogenic temperatures
Over the last 30 years, metrology laboratories have used the quantum behavior of the Josephson effect to greatly improve voltage metrology. The following
Guangjun Gao, John P. Lehan, William W. Zhang, Ulf Griesmann, Johannes A. Soons
A glancing incidence interferometric test for large x-ray mirror mandrels, using two computer generated holograms (CGH s), is described. The two CGH s are used