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Journals

Development of the Metrology and Imaging of Cellulose Nanocrystals

September 19, 2011

Author(s)

Michael T. Postek, Andras Vladar, John A. Dagata, Natalia Farkas, Bin Ming, Ryan Wagner, Arvind Raman, Robert J. Moon, Ronald Sabo, Theodore H. Wegner, James Beecher

The development of metrology for nanoparticles is a significant challenge. Cellulose nanocrystals (CNC) are one group of nanoparticles that have high potential...

Calculations of electron stopping powers for 41 elemental solids over the 50 eV to 30 keV range with the full Penn algorithm

September 19, 2011

Author(s)

Cedric J. Powell, David R. Penn, H Shinotsuka, Shigeo Tanuma

We present collision electron stopping powers (SPs) for 41 elemental solids (Li, Be, graphite, diamond, glassy C, Na, Mg, Al, Si, K, Sc, Ti, V, Cr, Fe, Co, Ni...

Reaction Mechanism Governing the Formation of 1,3-bis(diphenylphosphino)propane-protected Gold Nanoclusters

September 19, 2011

Author(s)

Jeffrey W. Hudgens, John M. Pettibone, Thomas P. Senftle, Ryan N. Bratton

This report outlines the determination of a reaction mechanism that can be manipulated to develop directed syntheses of gold monolayer protected clusters (MPCs)...

Efficient quantum dot single photon extraction into an optical fiber using a nanophotonic directional coupler

September 19, 2011

Author(s)

Marcelo I. Davanco, Matthew T. Rakher, W. Wegscheider, Dieter Schuh, Antonio Badolato, Kartik A. Srinivasan

We demonstrate a spectrally broadband and efficient technique for collecting photoluminescence from a single InAs quantum dot directly into a standard single...

Extending Reversed-Flow Chromatographic Methods for the Measurement of Diffusion Coefficients to Higher Temperatures

September 19, 2011

Author(s)

William S. McGivern, Jeffrey A. Manion

A reversed-flow chromatographic apparatus for the measurement of binary diffusion coefficients is described and utilized to measure the binary diffusion...

Reversed-Flow Chromatographic Determination of Binary Diffusion Coefficients

September 19, 2011

Author(s)

William S. McGivern, Jeffrey A. Manion

A reversed-flow chromatographic apparatus for the measurement of binary diffusion coefficients is described. Hydrocarbons are detected using flame ionization...

Ultracold Atoms and Precise Time Standards

September 19, 2011

Author(s)

Gretchen K. Campbell, William D. Phillips

Experimental techniques of laser cooling and trapping, along with other cooling techniques have produced gaseous samples of atoms so cold that they are, for...

Block copolymer photonic gel for mechanochromic sensing

September 19, 2011

Author(s)

Edwin Chan, Joseph J. Walish, Edwin L. Thomas, Christopher Stafford

In this work, we describe a strategy based on mechanochromic sensing, the coupling between mechanical and optical properties, of a block copolymer photonic gel...

AGING-INDUCED ANISOTROPY OF MECHANICAL PROPERTIES IN STEEL PRODUCTS: IMPLICATIONS FOR THE MEASUREMENT OF ENGINEERING PROPERTIES

September 16, 2011

Author(s)

Mark D. Richards, Elizabeth S. Drexler, James R. Fekete

Strain aging in low-carbon steels is a well-known strengthening phenomenon, the typical results of which are an increase in yield stress and/or an increase in...

High-Resolution Infrared Spectra of Spiropentane, C5H8

September 15, 2011

Author(s)

Alfons Weber, J E. Price, K A. Coulterpark, Tony Masiello, Joseph W. Nibler, A Maki, Thomas A. Blake

Infrared spectra of spiropentane (C5H8) have been recorded at a resolution (0.002 cm-1) sufficient to resolve for the first time individual rovibrational lines...

Evidence for upregulated repair of oxidatively induced DNA damage in human colorectal cancer

September 15, 2011

Author(s)

M Miral Dizdar, Pawel Jaruga, Prasad T. Reddy, Guldal Kirkali, Didem Keles, Gulgun Oktay, Aras E. Canda

Molecular pathways that play a role in the development of colorectal cancer involve multiple genetic changes in cancer-related genes that may be caused by...

A Quantitative LC-MS/MS Method for Comparative Analysis of Capture-Antibody Affinity Toward Protein Antigens

September 15, 2011

Author(s)

Mark Lowenthal, Hugo H. Gasca-Aragon, John E. Schiel, Nathan Dodder, David Bunk

A mass spectrometry-based antibody selection procedure targeting human cardiac troponin I (cTnI) was established for the purpose of developing a well...

Rectangular Scale-Similar Etch Pits in Monocrystalline Diamond

September 15, 2011

Author(s)

Craig D. McGray, Richard A. Allen, Marc J. Cangemi, Jon C. Geist

Etching of monocrystalline diamond in oxygen and water vapor at 1100° C through small pores in a silicon nitride film produced smooth-walled rectangular...

5 MHz Phase Detector With Low Residual Flicker

September 15, 2011

Author(s)

Corey A. Barnes, Archita Hati, Craig W. Nelson, David A. Howe

The measurement of close-to carrier phase modulation (PM) noise of state-of-the-art oscillators is always challenging. Quite often the residual noise of the...

Standards and Biometrics

September 15, 2011

Author(s)

Bradford J. Wing

This paper addresses the importance of standards when implementing or using biometric systems. Standards have been developed to ensure that biometric systems...

Magnetization textures in NiPd nanostructures

September 15, 2011

Author(s)

Jean-Yves Chauleau, Benjamin James McMorran, R. Belkhou, Nicolas Bergeard, Tevfik Mente?, Miguel Angel Nino, Andrea Locatelli, John Unguris, Stanislas Rohart, Jacques Miltat, Andre Thiaville

We have observed peculiar magnetization textures in Ni80Pd20 nanostructures, by three different imaging techniques (MFM, XMCD-PEEM and SEMPA). The appearance of...

Single-qubit-gate error below 10^-4 in a trapped ion

September 14, 2011

Author(s)

Kenton R. Brown, Andrew C. Wilson, Yves Colombe, Christian Ospeklaus, Adam M. Meier, Emanuel H. Knill, Dietrich G. Leibfried, David J. Wineland

In theory, quantum computers can solve certain problems much more efficiently than classical computers [1]. This has motivated experimental efforts to construct...

Electron Transport in Gold Nanowires: Stable 1-, 2- and 3-Dimensional Atomic Structures and Non-Integer Conduction States

September 14, 2011

Author(s)

Francesca M. Tavazza, Douglas T. Smith, Lyle E. Levine, Jon R. Pratt, Anne M. Chaka

Experimental conductivity measurements made during highly stable tensile deformation of Au nanowires show a rich variety of behaviors, including non-integer...

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September 14, 2011

Author(s)

Siddharth NMN Khosla

Alkali and Alkaline-Earth Metal Dodecahydro-Closo-Dodecaborates: Probing Structural Variations via Neutron Vibrational Spectroscopy

September 13, 2011

Author(s)

Kristina Verdal, Wei Zhou, Vitalie Stavila, Jae-Hyuk Her, Mohammed Yousufuddin, Taner Yildirim, Terrence J. Udovic

Characterization of Deep-Levels in Silicon Nanowires by Low-Frequency Noise Spectroscopy

September 13, 2011

Author(s)

Abhishek Motayed, Sergiy Krylyuk, Albert Davydov

We have used low-frequency noise (LFN) spectroscopy to measure generation-recombination (G-R) centers in boron-doped silicon nanowires (SiNWs), which were grown...

Structure of lithium peroxide

September 12, 2011

Author(s)

Eric L. Shirley, Maria K. Chan, Naba Karan, Mahalingam Balasubramanian, Yang Ren, Jeffrey P. Greeley, Timothy T. Fister

The reliable identification of lithium oxides species, especially lithium peroxide (Li2O2), is of vital importance to the study of Li-air batteries. Previous x...

Comparison of ASTM C311 Strength Activity Index Testing vs. Testing Based on Constant Volumetric Proportions

September 12, 2011

Author(s)

Dale P. Bentz, Alejandro Duran-Herrera, Daniel Galvez-Moreno

Currently, the (pozzolanic) strength activity indices of fly ashes and natural pozzolans are typically evaluated using the procedures outlined in ASTM C311,...

Offset frequency dynamics and phase noise properties of a self- referenced 10 GHz Ti:sapphire frequency comb

September 12, 2011

Author(s)

Scott A. Diddams, Dirk Heinecke, Albrecht Bartels

This paper shows the experimental details of the stabilization scheme that allows full control of the repetition rate and the carrier-envelope oﬀset frequency...

Sub-micron absolute distance measurements in sub-millisecond times with dual free-running femtosecond Er fiber-lasers

September 12, 2011

Author(s)

Tze-An Lui, Nathan R. Newbury, Ian R. Coddington

We demonstrate a simplified dual-comb lidar setup for precision absolute ranging that can achieve a ranging precision at a meter of 2 υm in 140 υs acquisition...

Frequency-stabilization to 6x10^-16 via spectral-hole burning

September 11, 2011

Author(s)

Michael J. Thorpe, Tara M. Fortier, Matthew S. Kirchner, Till P. Rosenband, Lars Rippe

We demonstrate two-stage laser stabilization based on a combination of Fabry-Pérot and spectral-hole burning techniques. The laser is first pre-stabilized by...

Near-ground-state transport of trapped-ion qubits through a multidimensional array

September 8, 2011

Author(s)

Dietrich G. Leibfried, Rodney B. Blakestad, Christian Ospelkaus, Aaron Vandevender, Janus Wesenberg, Michael J. Biercuk, David J. Wineland

We have demonstrated transport of 9Be+ ions through a 2D Paul-trap X-junction array while maintaining the ions near the motional ground-state of their local...

Effect of AlN Buffer Layer Properties on the Morphology and Polarity of GaN Nanowires Grown by Molecular Beam Epitaxy

September 8, 2011

Author(s)

Matthew D. Brubaker, Kristine A. Bertness, Norman A. Sanford, Albert Davydov, Igor Levin, Devin M. Rourke, Victor M. Bright

Low temperature AlN buffer layers grown by plasma-assisted Molecular Beam Epitaxy (MBE) on Si (111) were found to significantly affect the subsequent growth...

Measurement and Correlation of the Thermal Conductivity of 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf) and trans-1,3,3,3-tetrafluoropropene (R1234ze)

September 8, 2011

Author(s)

Richard A. Perkins, Marcia L. Huber

New experimental data on the thermal conductivity of 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf) and trans-1,3,3,3-tetrafluoropropene (R1234ze) are reported that...

Pulse Terahertz Reflection/Scattering Measurement

September 7, 2011

Author(s)

Shu Z. Lo, Edwin J. Heilweil

We report a method to measure reflection and scattering from several samples with different degrees of surface roughness and material properties at terahertz...

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