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Journals

Simultaneuos Electrochemical and Mechanical Impendance Spectroscopy Using Cantilever Curvature

August 29, 2012

Author(s)

Manon C. Lafouresse, Ugo Bertocci, Carlos R. Beauchamp, Gery R. Stafford

Electrochemical impedance spectroscopy is applied to in-situ stress measurements of a gold cantilever electrode in 0.1 M HClO4 as a new technique for studying

NIST/ISAC standardization study: variability in assignment of intensity values to fluorescence standard beads and in cross calibration of standard beads to hard dyed beads

August 28, 2012

Author(s)

Lili Wang

A procedure is described for assigning the number of equivalent reference fluorophores (ERF) values to microspheres labeled with a fluorophore designed to

Error Modeling of Seebeck Coefficient Measurements Using Finite Element Analysis

August 28, 2012

Author(s)

Joshua B. Martin

Using finite element analysis, we have developed a metrology simulation to model errors in the measurement of the Seebeck coefficient. This physical parameter

Quantifying the elasticity and viscosity of geometrically-confined polymer films via thermal wrinkling

August 28, 2012

Author(s)

Edwin P. Chan, Qinhuang Lin, Christopher M. Stafford

We apply thermal wrinkling, which is a surface instability that occurs during thermal annealing of polymer films geometrically confined by a rigid substrate and

Experimental constraints on the polarizabilities of the 6s² 1S0 and 6s6p 3P0 states of Yb

August 28, 2012

Author(s)

Kyle P. Beloy

We utilize accurate experimental data available in the literature to yield bounds on the polarizabilities of the ground and first excited states of atomic Yb

Nucleation products of ligated nanoclusters unaffected by temperature and reducing agent

August 27, 2012

Author(s)

John M. Pettibone, Nicole R. Reardon

Atomically uniform nucleation products of ligated metal nanoclusters are observed irrespective of reduction conditions for metal-bidentate ligand systems

Protective roles of single-wall carbon nanotubes in ultrasonication-induced DNA base damage

August 27, 2012

Author(s)

Elijah J. Petersen, Xiaomin X. Tu, M Miral Dizdar, Ming Zheng, Bryant C. Nelson

Ultrasonication is a physical process known to generate abundant levels of oxygen-derived species such as hydroxyl radicals, hydrogen atoms, and hydrogen

Noncontact measurement of charge carrier lifetime and mobility in GaN nanowires

August 27, 2012

Author(s)

Christopher M. Dodson, Patrick Parkinson, Kristine A. Bertness, Hannah J. Joyce, Laura M. Herz, Norman Sanford, Michael B. Johnston

The first noncontact photoconductivity measurements of gallium nitride nanowires (NWs) are presented, revealing a high crystallographic and optoelectronic

Vertically Segregated Structure and Properties of small molecule-polymer blend semiconductors for organic thin film transistors

August 27, 2012

Author(s)

Nayool Shin, Dean DeLongchamp, Jihoon Kang, Regis J. Kline, Lee J. Richter, Vivek Prabhu, Balaji Purushothamanc, John E. Anthony, Do Y. Yoon

The phase-segregated structure and the electrical properties of thin film blends of the small-molecule semiconductor fluorinated 5,11-bis(triethylsilylethynyl)

Measuring Single-Walled Carbon Nanotube Length Distributions from Diffusional Trajectories

August 27, 2012

Author(s)

Jason Streit, Sergei M. Bachilo, Anton V. Naumov, Constantine Y. Khripin, Ming Zheng, R B. Weisman

A new method is demonstrated for measuring the length distributions of dispersed single-walled carbon nanotube (SWCNT) samples by analyzing diffusional motions

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

A nondestructive analytical method based on autoradiography and gamma spectrometry was developed to perform activity distribution analysis for particulate

Coherent Diabatic Ion Transport and Separation in a Multizone Trap Array

August 24, 2012

Author(s)

Ryan S. Bowler, John P. Gaebler, Yiheng Lin, Ting Rei Tan, David Hanneke, John D. Jost, J. Home, Dietrich G. Leibfried, David J. Wineland

We investigate ion motion dynamics during the transport between and separation into spatially distinct trap locations in a multi-zone trap array. We laser-cool

Accurate and Precise Calibration of AFM Cantilever Spring Constants using Laser Doppler Vibrometry

August 24, 2012

Author(s)

Richard S. Gates, Jon R. Pratt

Accurate cantilever spring constants are important in atomic force microscopy in both control of sensitive imaging and to provide correct nanomechanical

Microwave Measurements and Systematic Circuit-Model Extraction of Nanowire Metal Semiconductor Field Effect Transistors

August 24, 2012

Author(s)

Dazhen Gu, Thomas M. Wallis, Pavel Kabos, Paul T. Blanchard, Kristine A. Bertness, Norman A. Sanford

We present detailed on-wafer scattering parameter measurements and equivalent circuit modeling of metal semiconductor field effect transistor (MESFET) that

Microwave measurements and systematic circuit-model extraction of nanowire metal semiconductor field-effect transistors

August 24, 2012

Author(s)

Dazhen Gu, Thomas M. Wallis, Pavel Kabos, Paul T. Blanchard, Kristine A. Bertness, Norman A. Sanford

We present detailed on-wafer scattering parameter measurements and equivalent circuit modeling of metal semiconductor field effect transistor (MESFET) that

A high-bandwidth electromagnetic MEMS motion stage for scanning applications

August 23, 2012

Author(s)

Young M. Choi, Nicholas G. Dagalakis, Jason J. Gorman, Seung Ho Yang, Yong Sik Kim, Jae M. Yoo

This paper presents the design, fabrication and experimental results of an out-of-plane electromagnetic motion stage. The combination of electromagnetic

The effect of styrene-methyl methacrylate monomeric arrangement on the ultrasonic degradation of copolymers

August 23, 2012

Author(s)

Mallory J. Morris, Andre Striegel

Ultrasonic degradation is a convenient means of studying the degradation of macromolecules in transient elongational flows. Cavitation results in non-random

Experimental Design and Data Evaluation Considerations for Comparisons of Higher-Order Value-Assigned Materials

August 22, 2012

Author(s)

David L. Duewer, Hugo H. Gasca-Aragon, Katrice A. Lippa, Blaza Toman

The analysis of higher-order value-assigned materials (HOVAMs) such as certified reference materials (CRMs) and value-assigned proficiency testing materials can

MEMS-based universal fatigue test technique

August 22, 2012

Author(s)

Li-Anne Liew, David T. Read, Nicholas Barbosa

We have developed a MEMS (micro electro mechanical systems) -based method for fatigue testing of micro- to millimeter-sized specimens of any material (hence

Microstructure evolution and development of annealed Ni/Au contacts to GaN nanowires

August 21, 2012

Author(s)

Andrew M. Herrero, Paul T. Blanchard, Aric W. Sanders, Matthew D. Brubaker, Norman A. Sanford, Alexana Roshko, Kristine A. Bertness

The development of Ni/Au contacts to Mg-doped GaN nanowires (NWs) is examined. Current-voltage (I-V) measurements of these Mg-doped nanowire devices frequently

Tunable glass reference materials for quantitative backscattered electron imaging of mineralized tissues

August 21, 2012

Author(s)

Sara E. Campbell, Roy H. Geiss, Steve A. Feller, Virginia L. Ferguson

Backscatter electron (BSE) microscopy provides graylevel contrast resulting from variations in atomic composition. Through the use of standards, quantitative

Detailed Spectroscopy of the Cs2 a3Sigma+u State and Implications for Measurements Sensitive to Variation of the Electron/Proton Mass Ratio

August 21, 2012

Author(s)

S Sainis, J. M. Sage, D DeMille, Eite Tiesinga, Svetlana Kotochigova

We present spectroscopic data on moderately bound levels in the Cs2 a3Sigma+ u state. The data have sufficient resolution to be sensitive to rotational and

Structure Determination of a Polymeric Amorphous Chain Compound AlB₄H₁₁

August 21, 2012

Author(s)

Xuenian Chen, Yongsheng Zhang, Yongli Wang, Wei Zhou, Douglas A. Knight, Teshome B. Yisgedu, Zhenguo Huang, Hima K. Lingam, Beau Billet, Terrence J. Udovic, Gilbert M. Brown, Sheldon G. Shore, Christopher M. Wolverton, Ji-Cheng Zhao

The structure of the amorphous aluminoborane compound AlB 4H 11 was identified through a collaborative study closely coupling theoretical predictions via the

Kinematic Modeling and Calibration of a Flexure Based Hexapod Nanopositioner

August 21, 2012

Author(s)

Hongliang Shi, Hai-Jun Su, Nicholas Dagalakis, John A. Kramar

This paper covers the kinematic modeling of a flexure-based, hexapod nanopositioner and a new method of calibration for this type of nanopositioner. This six

Mass spectrometry quantification of clusterin in the human brain

August 20, 2012

Author(s)

Junjun J. Chen, Meiyao M. Wang, Illarion V. Turko

A multifunctional glycoprotein clusterin has been associated with late-onset Alzheimers disease (AD). This finding should prompt further investigation to

Contact resistance of low-temperature carbon nanotube vertical interconnects

August 20, 2012

Author(s)

Ann C. Chiaramonti Debay, Sten Vollebregt, R. Ishihara, Hugo Schellevis, Kees Beenakker

In this work the electrical contact resistance and length dependant resistance of vertically aligned carbon nano- tubes (CNT) grown at 500 °C with high tube

Second-order boundary corrections to the radial acoustic eigenvalues for a spherical cavity

August 17, 2012

Author(s)

Keith A. Gillis

We calculated the eigenvalues of the radially-symmetric acoustic modes of a gas-filled, spherical cavity to order (δ T/a) 2, where δ T is the thickness of the

A modified Roberts-Langenbeck test for measuring thickness and refractive index variation of silicon wafers

August 17, 2012

Author(s)

Jungjae Park, Lingfeng Chen, Quandou (. Wang, Ulf Griesmann

We describe a method to simultaneously measure thickness variation and refractive index homogeneity of 300 mm diameter silicon wafers using a wavelength

Photoluminescence Polarization in Strained GaN/AlGaN Core/Shell Nanowires

August 17, 2012

Author(s)

G. Jacopin, L. Rigutti, S. Bellei, P. Lavenus, F. H. Julien, Albert Davydov, Denis Tsvetkov, Kristine A. Bertness, Norman Sanford, John B. Schlager, M. Tchemycheva

The polarization properties of GaN/AlGaN core/shell nanowire (NW) heterostructures have been investigated using polarization resolved micro-photoluminescence (µ

Optical isolator using an atomic vapor in the hyperfine Paschen-Back regime

August 15, 2012

Author(s)

Svenja A. Knappe, L. Weller, K.S. Kleinbach, M.A. Zentile, I.G. Hughes, C.S. Adams

A light, compact optical isolator using an atomic vapor in the hyperfine Paschen-Back regime is presented. Absolute transmission spectra for experiment and

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