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Journals

Photoexcitation Dynamics in Nanolayered C60-Zinc Phthalocyanine Films

February 17, 2012

Author(s)

Paul A. Lane, Paul D. Cunningham, Joseph S. Melinger, J. P. Kushto, Okan Esenturk, Edwin J. Heilweil

We elucidate charge transfer and photoexcitation dynamics in C60 and zinc phthalocyanine (ZnPc) by transient and continuous wave spectroscopies. We identify an

Fortified Foods with Vitamins: Analytical Concepts to Assure Better and Safer Products

February 16, 2012

Author(s)

Catherine Rimmer

TABLE ERRATA for Magnus, Oberhettinger & Soni (1966): Formulas and Theorems for the Special Functions of Mathematical Physics

February 16, 2012

Author(s)

Howard S. Cohl

A TABLE ERRATA is submitted concerning a formula in terms of a sum of two Gauss hypergeometric functions for Ferrers function of the second kind. This error

In situ electrochemical small-angle neutron scattering (eSANS) for quantitative structure and redox properties of nanoparticles

February 16, 2012

Author(s)

Vivek M. Prabhu, Vytautas Reipa

Rapid growth in nanomaterial applications highlight limitations of available physicochemical characterization methods. An in situ electrochemical small-angle

Reaction Network Governing Diphosphine-Protected Gold Nanocluster Formation from Nascent Cationic Platforms

February 16, 2012

Author(s)

John M. Pettibone, Jeffrey W. Hudgens

We identify the reaction network governing gold monolayer protected cluster (MPC) formation during the reduction of Au(PPh 3)Cl and L 5 (L 5 = 1,5-bis

Spatial distribution of bottlenose dolphins (Tursiops truncatus) inferred from stable isotopes and priority organic pollutants

February 15, 2012

Author(s)

Rachel Wilson, John Kucklick, Brian C. Balmer, Randall Wells, Jeffery Chanton, Doug Nowacek

Differences in priority organic pollutants (POPs), analyzed by gas chromatography-mass spectrometry, and stable isotope ratios (δ¹³C, δ³⁴S, and δ¹⁵N; analyzed

Penning traps with unitary architecture for storage of highly charged ions

February 15, 2012

Author(s)

Joseph N. Tan, Samuel M. Brewer, Nicholas D. Guise

Penning traps are made extremely compact by embedding rare-earth permanent magnets in the electrode structure. Axially-oriented NdFeB magnets are used to

Comparison of hydrogen embrittlement in three pipeline steels in high pressure gaseous hydrogen environments

February 15, 2012

Author(s)

Nicholas Nanninga, Yaakov Levy, Elizabeth S. Drexler, Ryan Condon, April Stevenson, Andrew J. Slifka

The tensile properties of API-5L grades X52, X65, and X100 pipeline steels have been measured in a high pressure (13.8 MPa) hydrogen gas environment

Features of the retinal environment which affect the activities and product profile of cholesterol-metabolizing CYP27A1 and CYP11A1

February 15, 2012

Author(s)

Illarion V. Turko, Gun-Young Heo, Wei-Li Liao, Irina A. Pikuleva

The retina is the sensory organ in the back of the eye which absorbs and converts the light to electrochemical impulses transferred to the brain. Herein, we

Nanomechanical properties of polyethylene glycol brushes on gold substrates

February 15, 2012

Author(s)

Gheorghe NMN Stan, Frank W. DelRio, Robert I. MacCuspie, Robert F. Cook

Brushes of polyethylene glycol (PEG) were directly anchored onto bare gold substrates in solution. The nucleation kinetics of PEG binding were investigated

Hyperspectral Image Projector Applications

February 15, 2012

Author(s)

Joseph P. Rice, Steven W. Brown, David W. Allen, Howard W. Yoon, Maritoni A. Litorja, Jeeseong Hwang

For the past several years NIST has been developing, along with several collaborators, a Hyperspectral Image Projector (HIP). This scene projector produces high

Direct-comb molecular spectroscopy with accurate, resolved comb teeth over 43 THz

February 15, 2012

Author(s)

Alexander M. Zolot, Fabrizio R. Giorgetta, Esther Baumann, Jeffrey W. Nicholson, William C. Swann, Ian R. Coddington, Nathan R. Newbury

We demonstrate a dual comb spectrometer using stabilized frequency combs spanning 176 THz to 219 THz (1370 nm to 1700 nm) in the near infrared. Measurements of

Viscoelastic Properties and Nanoscale Structures of Composite Oligopeptide-Polysaccharide Hydrogels

February 15, 2012

Author(s)

Laura L. Hyland, Marc B. Taraban, Yue Feng, Boualem Hammouda, Y. Bruce Yu

The main goal of thermoelectrics research is to optimize the charge and entropy flow separately in order to improve thermoelectric efficiency. Heavily doped

Temperature Dependence of Structure and Density for D₂O Confined in MCM-41-S

February 15, 2012

Author(s)

William A. Kamitakahara, Antonio Faraone, Kao-Hsiang Liu, Chung-Yuan Mou

Using neutron diffraction, we have tracked the temperature dependence of structural properties for heavy water confined in the nanoporous silica matrix MCM-41-S

Quantitative comparison of two independent lateral force calibration techniques for the atomic force microscope

February 15, 2012

Author(s)

Sarice S. Barkley, Zhao Z. Deng, Richard S. Gates, Mark Reitsma, Rachel J. Cannara

Two independent lateral force calibration methods for the atomic force microscope, the Hammerhead (HH) technique and the diamagnetic lateral force calibrator (D

Direct observation of nucleation and early stages of growth of GaN nanowires

February 15, 2012

Author(s)

Rosa E. Diaz, Renu Sharma, Karalee Jarvis, Qinglei Zhang, Subhash Mahajan

We report for the first time direct observations of the nucleation and early stages of growth of GaN nanowires. The nanowires were formed by exposing Au + Ga

Semiclassical fifth virial coefficients for improved ab initio helium-4 standards

February 15, 2012

Author(s)

Katherine Shaul, Andrew Schultz, David A. Kofke, Michael R. Moldover

For helium-4, we present ab initio, semi-classical calculations of virial coefficients Bn for for n = 2, 3, 4, and 5 from 50 K to 1000 K. Using our values of B4

Quantum state preparation and control of single molecular ions

February 14, 2012

Author(s)

Dietrich G. Leibfried

Preparing molecules at rest and in a highly pure electronic, rotational and vibrational quantum state is a long standing dream in chemistry and physics, so far

Quantitative Measurements of the Size Scaling of Linear and Circular DNA in Nanofluidic Slitlike Confinement

February 14, 2012

Author(s)

Elizabeth A. Strychalski, Jon C. Geist, Michael Gaitan, Laurie E. Locascio, Samuel M. Stavis

Quantitative size measurements of single linear and circular DNA molecules in nanofluidic slitlike confinement are reported. A novel experimental method using

Monitoring of Biofilm Formation on Different Material Surfaces of Medical Devices using Hyperspectral Imaging Method

February 14, 2012

Author(s)

Jeeseong Hwang, Do-Hyun Kim, Moon S. Kim

Contamination of the inner surface of indwelling (implanted) medical devices by microbial biofilm is a serious problem. Some microbial bacteria such as

Towards a Metric for Communication Network Vulnerability to Attacks: A Game Theoretic Approach

February 13, 2012

Author(s)

Assane Gueye, Vladimir V. Marbukh

In this paper, we propose a quantification of the vulnerability of a communication network when links are subject to failures due to the actions of a strategic

Microfluidic magnetophoretic separations of immunomagnetically labeled rare mammalian cells

February 13, 2012

Author(s)

Thomas P. Forbes, Samuel P. Forry

Immunomagnetic isolation and magnetophoresis in microfluidics have emerged as viable techniques for the separation, fractionation, and enrichment of rare cells

Demonstration of code-division multiplexing for x-ray microcalorimeters

February 13, 2012

Author(s)

Greg Stiehl, W.Bertrand (Randy) Doriese, Gene C. Hilton, Kent D. Irwin, Carl D. Reintsema, Dan Schmidt, Daniel Swetz, Joel Ullom, Leila R. Vale, Joseph Fowler

We demonstrate the code-division multiplexing (CDM) readout of eight transition-edge sensor microcalorimeters. The energy resolution is 3.0 eV (full width at

Anharmonic Phonons and Magnons in BiFeO₃

February 13, 2012

Author(s)

O. Delaire, M. B. Stone, J. Ma, A. Huq, D. Gout, Craig Brown, K. F. Wang, Z. F. Ren

The phonon density of states (DOS) and magnetic excitation spectrum of polycrystalline BiFeO 3 were measured for temperatures 200 less than or equal to}Τ less

Advanced Code-Division Multiplexers for Superconducting Detector Arrays

February 11, 2012

Author(s)

Kent D. Irwin, Hsiao-Mei Cho, William B. Doriese, Joseph W. Fowler, Gene C. Hilton, Michael D. Niemack, Carl D. Reintsema, Daniel R. Schmidt, Joel N. Ullom, Leila R. Vale

Multiplexers based on the modulation of superconducting quantum interference devices are now regularly used in multi-kilopixel arrays of superconducting

Mechanically Compliant Grating Reflectors for Optomechanics

February 10, 2012

Author(s)

Utku Kemiktarak, Michael Metcalfe, Mathieu Durand, John R. Lawall

We demonstrate micromechanical reflectors with a reflectivity as large as 99.4% and a mechanical quality factor Q as large as 7.8 x 10^5 for optomechanical

Determination of spin pumping as a source of linewidth sputtered Co₉₀Fe₁₀/Pd multilayers by use of broadband ferromagnetic resonance spectroscopy

February 10, 2012

Author(s)

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

We performed a systematic study of damping in Co 90Fe 10/Pd multilayers by use of broadband (1 60 GHz) ferromagnetic resonance (FMR) spectroscopy in the

Density, Speed of Sound, and Viscosity Measurements of Reference Materials for Biofuels

February 10, 2012

Author(s)

Arno R. Laesecke, Tara J. Fortin, Jolene D. Splett

Measurements of density, speed of sound, and viscosity have been carried out on liquid standard reference materials for biofuels as a function of temperature at

Formation and structure of 360 and 540 degree domain walls in thin magnetic stripes

February 10, 2012

Author(s)

Youngman Jang, Samuel R. Bowden, Mark Mascaro, John Unguris, Caroline Ross

360˚, 540˚ and other complex transverse domain walls have been created in narrow Co wires connected to injection pads by cycling a magnetic field perpendicular

High signal-to-noise ratio laser technique for accurate measurements of spectral line parameters

February 9, 2012

Author(s)

A. Cygan, D Lisak, S. Wojtewicz, J. Domyslawska, Joseph T. Hodges, R.S. Trawinski, R. Ciurylo

We present a new cavity-enhanced technique for the precise measurement of absorption line shape and line position. This approach, which combines high-bandwidth

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