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Journals

Use of Fluorescence Imaging and Ionic Liquids in the Study of Clay, Carbon, and Cellulose Based-Nanomaterials

August 12, 2014

Author(s)

Jeffrey W. Gilman

Some of the most critical issues facing the nanocomposite community include the need for multi-scale imaging of hierarchical structures, effective methods for...

Effects of Lateral Tip Control in CD-AFM Width Metrology

August 12, 2014

Author(s)

Ronald G. Dixson, Boon Ping Ng, Ndubuisi G. Orji

Critical dimension atomic force microscopes (CD-AFMs) use flared tips and two-dimensional sensing and position control of the tip-sample interaction to enable...

Ordered Structure and Thermal Expansion in Tungsten Bronze Pb₂K_0.5Li_0.5Nb₅O₁₅

August 12, 2014

Author(s)

Kun Lin, Yangchun Rong, Hui Wu, Qingzhen Huang, Li You, Yang Ren, Longlong Fan, Jun Chen, Xianran Xing

The crystal structure and thermal expansions of a new tetragonal tungsten bronze (TTB) ferroelectrics Pb 2K 0.5Li 0.5Nb 5O 15 were systematically investigated...

EUV spectra of Rb-like to Ni-like dysprosium ions in an electron beam ion trap

August 12, 2014

Author(s)

Deirdre Kilbane, G. O'Sullivan, Yuri A. Podpaly, John D. Gillaspy, Joseph Reader, Yuri Ralchenko

Extreme ultraviolet radiation emitted from highly-charged dysprosium ions was measured at the National Institute of Standards and Technology. The ions were...

Performance Benchmarking and Intensity Calibration of a Widefield Fluorescence Microscope Using Fluorescent Glass

August 11, 2014

Author(s)

Michael W. Halter, Elianna Bier, Paul C. DeRose, Gregory A. Cooksey, Steven J. Choquette, Anne L. Plant, John T. Elliott

Widefield fluorescence microscopy is a highly used tool for visually assessing biological samples and for quantifying cell responses. Despite its widespread use...

Attachment of a Reduction-Oxidative Active Diruthenium Compound to Au and Si Surfaces by Click Chemistry

August 10, 2014

Author(s)

Sujitra J. Pookpanratana, Joseph W. Robertson, Curt A. Richter, Christina A. Hacker, Lee J. Richter, Julia Savchenko, Steven Cummings, Tong Ren

We report the formation of molecular monolayers containing redox-active diruthenium(II,III) compound to gold and silicon surfaces via click chemistry. The use...

Speckle phase noise in coherent laser ranging: fundamental precision limitations

August 8, 2014

Author(s)

Esther Baumann, Jean-Daniel Deschenes, Fabrizio R. Giorgetta, William C. Swann, Ian R. Coddington, Nathan R. Newbury

Frequency-modulated continuous-wave laser detection and ranging (FMCW LADAR) measures the range to a surface through coherent detection of the backscattered...

Single-Mode Optical Fiber For High-Power, Low-Loss UV Transmission

August 8, 2014

Author(s)

Daniel H. Slichter, Yves Colombe, Andrew C. Wilson, Dietrich G. Leibfried, David J. Wineland

We report large-mode-area solid-core photonic crystal fibers made from fused silica which resist UV solarization even at relatively high optical powers. Using a...

Infiltration in energy modeling: a simple equation made better

August 8, 2014

Author(s)

Lisa C. Ng, Andrew K. Persily, Steven J. Emmerich

As building envelope performance and HVAC equipment efficiencies continue to be improved to reduce building energy use, a greater percentage of the total energy...

Measurement of High-Energy (10 keV to 60 keV) X-Ray Spectral Line Widths with eV Accuracy

August 8, 2014

Author(s)

John F. Seely, Jack L. Glover, Lawrence T. Hudson, Yuri Ralchenko, Nino R. Pereira, U. Feldman, C. D. Stefan

A high resolution crystal spectrometer (HRCS) utilizing a crystal in transmission geometry has been developed and experimentally optimized to measure the line...

Tunable spin-spin interactions and entanglement of ions in separate controlled potential wells

August 7, 2014

Author(s)

Andrew C. Wilson, Yves Colombe, K. R. Brown, Emanuel H. Knill, Dietrich G. Leibfried, David J. Wineland

Inspired by the ideas of Richard Feynman, 1 David Deutsch, 2 Seth Lloyd 3 and others, researchers in the field of quantum information processing and simulation...

Flow Cytometer Performance Characterization, Standardization and Calibration against CD4 on T Lymphocytes Enables Quantification of Biomarker Expressions for Immunological Applications

August 7, 2014

Author(s)

Heba Degheidy, Steven R. Bauer, Gerald Marti, Lili Wang

There is an urgent need for developing a procedure for biomarker standardization and quantification in clinical laboratories. Measuring the expression levels of...

Anion Reorientations in the Superionic Conducting Phase of Na₂B₁₂H₁₂

August 7, 2014

Author(s)

Kristina Verdal, Terrence J. Udovic, Vitalie Stavila, Wan Si NMN Tang, John J. Rush, Alexander V. Skripov

Quasielastic neutron scattering (QENS) methods were used to characterize the reorientational dynamics of the dodecahydro-closo-dodecaborate (B 12H 126u2-^0...

Microstructured fiber entangles light for quantum information processing

August 6, 2014

Author(s)

Jingyun Fan, Alan Migdall

With dispersion engineering and optimization of pump wavelength, four-wave mixing within a microstructured fiber can be used to produce high-purity entangled...

Characterizing the Free and Surface-Coupled Vibrations of Heated-Tip Atomic Force Microscope Cantilevers

August 6, 2014

Author(s)

Jason P. Killgore, Ryan C. Tung, Donna C. Hurley

Combining heated-tip atomic force microscopy (HT-AFM) with quantitative methods for determining surface mechanical properties creates an avenue for nanoscale...

IT Pro Conference on Information Systems Governance

August 6, 2014

Author(s)

Irena Bojanova, D. Richard Kuhn

Approximately 100 IT professionals participated in the 2014 IT Pro Conference on Information Systems Governance, held at the National Institute of Standards and...

Enriching 28Si beyond 99.9998 % for semiconductor quantum computing

August 5, 2014

Author(s)

Kevin J. Dwyer, Joshua M. Pomeroy, David S. Simons, June W. Lau, Kristen L. Steffens

Using a laboratory-scale apparatus, we enrich 28Si and produce material with 40 times less residual 29Si than previously reported. Starting from natural...

A Candidate Reference Analytical Method for Quantification of Low Concentrations of Plasmid DNA by Exhaustive Counting of Single DNA Molecules in a Flow Stream

August 4, 2014

Author(s)

Hee-Bong Yoo, Dong-Geun Oh, Jae Yong Song, Mamoru Kawaharasaki, Jeeseong C. Hwang, In Chul Yang, Sang-Ryoul Park

This work demonstrates accurate measurement of the concentration of low-level plasmid DNA by counting individual DNA molecules using a high-sensitivity flow...

Tissue-Engineered Scaffolds for In Vitro Nanoparticle Toxicology

August 3, 2014

Author(s)

Elisabeth Mansfield, Kavita M. Jeerage, Tammy L. Oreskovic, Nikki S. Rentz, Jennifer Recknor

Ignition of Mulch Beds Exposed to Continuous-Wind Driven Firebrand Showers

August 3, 2014

Author(s)

Samuel L. Manzello, Sayaka Suzuki, Koji Kagiya, Junichi Suzuki, Yoshihiko Hayashi

A series of experiments were conducted to examine ignition of mulch beds to continuous, wind-driven firebrand showers. Shredded hardwood mulch, fitted in beds 1...

Fracture Toughness Characterization of High-Pressure Pipe Girth Welds Using Single-Edge Tension SE(T) Specimens

August 1, 2014

Author(s)

Enrico Lucon, Timothy S. Weeks, James Gianetto, W. R. Tyson, D. Y. Park

The safety and reliability of large-diameter pipelines for the transport of fluid hydrocarbons is being improved by the development of high-strength steels...

Comparisons of the radiation protection standards for air kerma of the NIST and the BIPM for Co60 and Cs137 gamma radiation

August 1, 2014

Author(s)

Ronaldo Minniti, C. Kessler, P J. Allisy-Roberts

An indirect comparison of the standards for air kerma of the National Institute of Standards and Technology (NIST), USA, and of the Bureau International des...

In Search of Better Pressure Standards

August 1, 2014

Author(s)

Jay H. Hendricks, Jacob E. Ricker, Patrick F. Egan, Gregory F. Strouse

Based on highly accurate optical interferometry and fundamental quantum calculations, researchers at the National Institute of Standards and Technology (NIST)...

Development of an EUVL collector with infrared radiation suppression

August 1, 2014

Author(s)

Steven E. Grantham, Mike Kriese, Yuriy Platonov, Bodo Ehlers, Licai Jiang, Jim Rodriguez, Mueller Ulrich, Shayna khatri, Adam Magruder, Charles S. Tarrio

Laser-produced plasma (LPP) sources for extreme ultraviolet lithography (EUVL) systems utilize CO2 lasers operating with wavelength 10.6μm. Since multilayer...

Improved measurement capabilities at the NIST EUV Reflectometry Facility

August 1, 2014

Author(s)

Charles S. Tarrio, Steven E. Grantham, Thomas A. Germer, Jack C. Rife, Thomas B. Lucatorto, Mike Kriese, Yuriy Platonov, Licai Jiang, Jim Rodriguez

The NIST Extreme Ultraviolet (EUV) Reflectometry Facility was designed in the 1990s to accommodate the largest multilayer optics envisioned at that time...

Resolution of Small-Angle Neutron Scattering with a Reflective Focusing Optic

August 1, 2014

Author(s)

David F. Mildner

A small-angle scattering spectrometer that uses a reflective focusing optic can achieve smaller values of the scattering vector, and with higher resolution...

Crosstalk Corrections for Coplanar-Waveguide Scattering-Parameter Calibrations

August 1, 2014

Author(s)

Dylan F. Williams, Franz-Josef Schmuckle, Ralf Doerner, Phung N. Gia, Uwe Arz, Wolfgang Heinrich

We study crosstalk and crosstalk corrections in coplanar waveguide vector-network-analyzer calibrations. We show that while crosstalk corrections can improve...

International comparison of measurements of hard magnets with the Vibrating Sample Magnetometer

August 1, 2014

Author(s)

F. Fiorillo, C. Beatrice, D. Son, Franz Josef Ahlers, R. Groessinger, F. Albertini, Y. P. Liu, A Lin, E. Patroi, Robert D. Shull, O. Thomas

We present the results of an international comparison regarding the magnetic properties of hard magnets, measured using the Vibrating Sample Magnetometer. The...

Elliptic Curves arising from Brahmagupta Quadrilaterals

August 1, 2014

Author(s)

Farzali Izadi, Foad Khoshnam, Dustin Moody, Arman Zargar

A Brahmagupta quadrilateral is a cyclic quadrilateral whose sides, diagonals, and area are all integer values. In this article, we characterize the notions of...

Nanoscale Imaging and Spectroscopy of Plasmonic Modes with the PTIR technique

August 1, 2014

Author(s)

Aaron M. Katzenmeyer, Jungseok Chae, Richard Kasica, Glenn Holland, Basudev Lahiri, Andrea Centrone

The collective oscillation of conduction electrons in plasmonic nanomaterials allows the coupling of propagating light waves with nanoscale volumes of matter (...

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