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Photon-efficient high-dimensional quantum key distribution

February 4, 2015

Author(s)

Tian Zhong, Hongchao Zhou, Rob Horansky, Catherine Lee, Varun Verma, Adriana Lita, Alessandro Restelli, Joshua Bienfang, Richard Mirin, Thomas Gerrits, Sae Woo Nam, Francesco Marsili, Zhenshen Zhang, Ligong Wang, Dirk Englund, Gregory Wornell, Jeffrey Shapiro, Franco N. Wong

… to 8.8 secure bits per photon at telecom wavelength, with 7.0 bits per photon maintained after 20 km of fibre transmission. With its throughput of as much as 7.1 Mb/s, our work represents a viable approach to real-world …

Structural characterization of Bi2Te3 and Sb2Te3 as a Function of Temperature Using Neutron Powder Diffraction (NPD) and Extended X-ray Absorption Fine Structure (EXAFS) Techniques

August 28, 2014

Author(s)

Winnie Wong-Ng, Azzam Mansour, Qingzhen Huang, Weihua Tang, Jeff Sharp, Alan Thompson

… The neutron structural studies were carried out from 20 K to 300K for Bi2Te3 and from 10K to 298 K for Sb2Te3. The …

The Half-Life of 209Po : Revisited

August 13, 2014

Author(s)

Ronald Colle, Ryan P. Fitzgerald, Lizbeth Laureano-Perez

… was obtained from 30 distinct data sets over a period of 20.7 years, encompassing over 700 liquid scintillation …

The Decline in Reported Smoking-Caused Wildfires

June 21, 2014

Author(s)

David T. Butry, Jeffrey P. Prestemon, Douglas S. Thomas

… appear successful at limiting wildfire startsby 20 %is a likely unintended consequence of a technology aimed …

Correlation of anomalous write error rate and ferromagnetic resonance spectrum in spin-transfer-torque-magnetic-random-access-memory devices containing in-plane free layers

May 28, 2014

Author(s)

Eric R. Evarts, Ranko R. Heindl, William H. Rippard, Matthew R. Pufall

… compared to {approximately equal} {approximately equal}20% in typical devices. Additionally, a shift in the …

Quantifying short-lived events in multistate ionic current measurements

January 7, 2014

Author(s)

Arvind K. Balijepalli, Jessica H. Benjamini, Andrew T. Cornio, Joseph W. Robertson, Kin P. Cheung, John J. Kasianowicz, Canute I. Vaz

… follows an exponential distribution, we recover nearly 20- fold more events per unit time that can be used for …

Precise determination of the spectroscopic g-factor using broadband ferromagnetic resonance spectroscopy

December 27, 2013

Author(s)

Justin M. Shaw, Hans T. Nembach, Thomas J. Silva, Carl T. Boone

… with measured data obtained for sputtered Ni 80 Fe 20 (Permalloy) thin films of varied thicknesses, where we …

Does Your SEM Really Tell the Truth? - How would you know? Part 1

December 16, 2013

Author(s)

Michael T. Postek, Andras Vladar

… of the instrument and its capabilities. Over the past 20 years or so, instrument manufacturers, through substantial …

Nanomanufacturing concerns about Measurements made in the SEM I: Imaging and its Measurement

November 1, 2013

Author(s)

Michael T. Postek, Andras Vladar

… of the instrument and its capabilities. Over the past 20 years or so, instrument manufacturers, through this …

NIST Micronutrients Measurement Quality Assurance Program Winter, Spring, and Fall 1996 Comparability Studies: Results for Round Robin XXXVI, XXXVII, and XXXVIII Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 9 Ascorbic Acid in Human

August 7, 2013

Author(s)

David L. Duewer, Margaret C. Kline, Katherine E. Sharpless, Jeanice M. Brown Thomas, Sam A. Margolis

… to provide their measurement results by September 20, 1996. The sample materials for Round Robin 9 were …

NIST Micronutrients Measurement Quality Assurance Program Winter, Spring, and Fall 1998 Comparability Studies: Results for Round Robin XLII, XLIII, and XLIV Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 11 Ascorbic Acid in Human Seru

August 7, 2013

Author(s)

David L. Duewer, Margaret C. Kline, Katherine E. Sharpless, Jeanice M. Brown Thomas, Sam A. Margolis

… distributed in September 1998 with results due by October 20, 1998. …

Measurements of Infrared Spectral Directional Emittance at NIST - A Status Update

September 12, 2012

Author(s)

Boris Wilthan, Leonard Hanssen, Sergey Mekhontsev

… of 200 °C to 900 °C over a wavelength range of 2 µm to 20 µm. This paper reports on the recent progress. Initial …

Radio-microanalytical particle measurements method and application to Fukushima aerosols collected in Japan

August 26, 2012

Author(s)

Cynthia J. Zeissler, Lawrence Forsley, Richard M. Lindstrom, Sean Newsome, Adrean Kirk, P.A. Mosier-Boss

… mBq each. 134Cs/137Cs activity ratios corrected to March 20, 2011 ranged from 0.7 (σ = 28 %) to 1.3 (σ = 15 %). The average ratio for a large …

Effects of chlorine and other water quality parameters on the release of silver nanoparticles from a ceramic surface

August 11, 2012

Author(s)

Michael W. Stewart, Angela Bielefeldt, Elisabeth Mansfield, R. Scott Summers, Joseph N. Ryan

… hydrodynamic diameter of the nanoparticles ranged from 20 to 100 nm over pH 6.5 to 10.5. The isoelectric point was …

Does Your SEM Really Tell the Truth?

August 1, 2012

Author(s)

Michael T. Postek, Andras Vladar

… of the instrument and its capabilities. Over the past 20 years or so, instrument manufacturers, through this …

Tin Oxide Nanowire Sensor with Integrated Temperature and Gate Control for Multi-Gas Recognition

March 7, 2012

Author(s)

Eric N. Dattoli, Albert Davydov, Kurt D. Benkstein

… (ketones and alcohols between the concentration range of 20 μmol/mol to 80 μmol/mol) in an air background. The dual …

Correlation Between the Pressure Dependence of the Critical Temperature and the Reversible Strain Effect on the Critical Current and Pinning Force in Bi 2 Sr 2 CaCu 2 O 8+x Wires

December 16, 2011

Author(s)

Xifeng Lu, Loren F. Goodrich, Daniel C. van der Laan, Jolene D. Splett, Najib Cheggour, T G. Holesinger, F J. Baca

… for making high-field magnets that operate at fields above 20 Tesla. Owing to the brittle nature of high-temperature …

High-current dc power transmission in flexible RE-Ba 2 Cu 3O 7-d coated conductor cables

December 1, 2011

Author(s)

Daniel C. van der Laan, Loren F. Goodrich, Timothy J. Haugan

… needs, we have constructed a 10 mm diameter RE-Ba 2 Cu 3 O 7-δ (RE = rare earth) coated conductor cable that is lighter … superconducting cables, and that has a critical current of 7,561 A at 76 K. The cable is expected to have a critical current of more than 20,000 A at 55 K and therefore will likely exceed the …

Predicting the Optimal Dopant Concentration in Gadolinium Doped Ceria: A Kinetic Lattice Monte Carlo Approach

November 7, 2011

Author(s)

Pratik Dholabhai, Shahriar Anwar, James B. Adams, Peter A. Crozier, Renu Sharma

… The maximum ionic conductivity is predicted to occur at ≈ 20 % to 25 % mole fraction of Gd dopant. Placing Gd dopants …

Radiation-Induced Synthesis of Poly(vinylpyrrolidone) Nanogel

October 14, 2011

Author(s)

Jung-Chul An, Alia Weaver, Byungnam Kim, Aaron Barkatt, Dianne L. Poster, Wyatt N. Vreeland, Joseph Silverman, Mohamad Al-Sheikhly

… 3) % of that of PVP molecules that were not irradiated at 20 C, as shown by the results of AFFFF measurements. The …

New Measurement Service for Determining Pressure Sensitivity of Type LS2aP Microphones by the Reciprocity Method

October 1, 2011

Author(s)

Randall P. Wagner, Victor Nedzelnitsky, Steven E. Fick

… standard microphones over the frequency range 31.5 Hz to 20 000 Hz. At most frequencies common to the new service and …

Thermodynamic Properties of 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf): Vapor Pressure and p-r-T Measurements and an Equation of State

June 2, 2011

Author(s)

Markus Richter, Mark O. McLinden, Eric Lemmon

The p-ρ-T behavior of 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) was measured from T = (232 to 400)K with pressures up to 10 MPa using a two-sinker densimeter. The measurements extend from low-density vapor to compressed-liquid states, and include the

Frequency-stabilized cavity ring-down spectroscopy measurements of carbon dioxide isotope ratios

May 15, 2011

Author(s)

Joseph T. Hodges, David A. Long, Mitchio Okumura, Charles E. Miller

Carbon dioxide (CO2) isotopic ratios were measured at 1.6 μm through the use of frequency-stabilized cavity ring-down spectroscopy (FS-CRDS). We report the highest spectrum signal-to-noise ratios to date for CO2 transitions, with values as high as 28,000:1

Verification of the performance of the 100 kN table-top model test frame used for tensile testing

February 7, 2011

Author(s)

Enrico Lucon

… The so-called 20 kips frame (MTS table-top machine), equipped with a 100 kN …

Fractionation and Characterization of Gold Nanoparticles in Aqueous Solution: Asymmetric-Flow Field Flow Fractionation with MALS, DLS and UV-Vis Detection

August 30, 2010

Author(s)

Tae Joon Cho, Vincent A. Hackley

… rates. Individual citrate-stabilized GNP components (10, 20, 30, 40, and GNP60) and GNPs functionalized with …

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