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Journals

Effect of Supercritical Carbon Dioxide on the Thermodynamics of Model Styrene-Acrylonitrile Copolymer-Poly(methyl methacrylate) Blends Studied by Small-Angle Neutron Scattering

July 25, 2013

Author(s)

Sebnem Inceoglu, Nicholas P. Young, Andrew J. Jackson, Steven Kline, Stephane Costeux, Nitash P. Balsara

Small-angle neutron scattering was used to study a binary blend of styrene-acrylonitrile copolymer (SAN) and deuterated poly(methyl methacrylate) (dPMMA), as

Character sums determined by low degree isogenies of elliptic curves

July 25, 2013

Author(s)

Dustin Moody, Christopher Rasmussen

We look at certain character sums determined by isogenies on elliptic curves over finite fields. We prove a congruence condition for character sums attached to

Dynamic light deflection in an active Raman-gain medium using a spatially inhomogeneous pump

July 25, 2013

Author(s)

Lu Deng, Edward W. Hagley, Chengjie Zhu

We study optical wave deflection in a three-level active Raman gain medium using a spatially inhomogeneous pump field. Using the eikonal approximation, we

The Need for a Reference Self-Diffusion Mobility Database for the Pure Elements

July 25, 2013

Author(s)

Carelyn E. Campbell

The increased focus on integrated computational materials engineering (ICME), especially through the Materials Genome Initiative (MGI) , has amplified the need

CT head-scan dosimetry in an anthropomorphic phantom and associated measurement of ACR accreditation-phantom imaging metrics under clinically representative scan conditions

July 24, 2013

Author(s)

Ronaldo Minniti, Claudia Brunner, Stanley H. Stern, Marie I. Parry, Kish Chakrabarti

The purpose of this work was to measure radiation absorbed dose and its distribution in an anthropomorphic head phantom under clinically representative scan

Comment on "Enhanced polarization and mechanisms in optically pumped hyperpolarized ³He in the presence of ⁴He"

July 24, 2013

Author(s)

Thomas R. Gentile, M E. Hayden, P.J. Nacher, A K. Petukhov, B Saam, T G. Walker

H.H. Chen et al [1] claim that adding 4He to spin-exchange optical pumping (SEOP) cells confines 3He atoms to a diffusion-limited region, which effectively

Why there is no noon-midnight red shift in the GPS

July 24, 2013

Author(s)

Neil Ashby, Marc A. Weiss

Although the effects of solar and lunar gravitational potentials on the frequencies of orbiting GPS clocks are actually negligible, a naive calculation appears

Energies and E1, M1, E2, and M2 transition rates for states of the 2s22p4, 2s2p5, and 2p6 configurations in oxygen-like ions between F II and Kr XXIX⋆

July 23, 2013

Author(s)

P. Rynkun, P. Jonsson, G. Gaigalas, Charlotte F. Fischer

Energies, E1, M1, E2, M2 transition rates, weighted oscillator strengths, and lifetimes from relativistic con figuration interaction calculations are reported

Absolute calibration of optical power and fluence rate for PDT: Report of AAPM TG140

July 23, 2013

Author(s)

Marla L. Dowell, Timothy Zhu, Christopher Bonnerup, Valdir Colussi, Jarod Finlay, Lothar Lilge, Thomas Slowery, claudio sibata

This report is primarily concerned with methods for optical calibration of laser power and light fluence rate for continuous wave (CW) light sources

Cold atomic beam ion source for focused ion beam applications

July 23, 2013

Author(s)

Brenton J. Knuffman, Adam V. Steele, Jabez J. McClelland

We report measurements and modeling performed on an ion source based on ionization of a laser-cooled atomic beam. We show a high brightness and a low energy

Shape Calculus for Shape Energies in Image Processing

July 22, 2013

Author(s)

Gunay Dogan, Ricardo H. Nochetto

Many image processing problems are naturally expressed as energy minimization or shape optimization problems, in which the free variable is a shape, such as a

Phonon-Roton Modes of Liquid ⁴He Beyond the Roton in the Porous Medium MCM-41

July 22, 2013

Author(s)

Richard T. Azuah, S. O. Diallo, M. A. Adams, H. R. Glyde

Electron Tweezers as a Tool for High Precision Manipulation of Nanoobjects

July 22, 2013

Author(s)

Vladimir P. Oleshko, James Howe

Trapping of nanometer size objects by optical tweezers is challenging because the forces become very small for nanoparticles and the resolving power of light

Direct measurements of mass-specific optical cross sections of single component aerosol mixtures

July 22, 2013

Author(s)

James Radney, Xiaofei Ma, Keith A. Gillis, Michael R. Zachariah, Joseph T. Hodges, Christopher D. Zangmeister

The optical properties of atmospheric aerosols vary widely, being dependent upon particle composition, morphology and mixing state. This diversity and

Optical Measurements of OLED Panels for Lighting Applications

July 22, 2013

Author(s)

Tokihisa Kawabata, Yoshi Ohno

Optical characteristics of OLED panels have been investigated for the purpose of developing a test method for OLED panels for lighting applications. The

Performance of BAW Resonators at Cryogenic Temperatures

July 21, 2013

Author(s)

Eduard Rocas, C. Collado, Jordi Mateu, A Hueltes, J. Verdu, Robert Aigner, James Booth

In this work we go beyond the usual temperature range for commercial applications and explore the functioning of Bulk Acoustic Wave (BAW) resonators down to

Dynamic Stress Analysis Applied to (111)-Textured Pt in HClO_(4) Electrolyte

July 20, 2013

Author(s)

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

Dynamic stress analysis (DSA) was performed on Pt cantilever electrodes immersed in a 0.1 mol/L HClO_(4) electrolyte. DSA combines elements of electrochemical

Improving quantitative neutron radiography through image restoration

July 20, 2013

Author(s)

Daniel S. Hussey, Elias M. Baltic, Kevin J. Coakley, David L. Jacobson

This in-situ study examines the water content in polymer electrolyte fuel cells (PEFCs) using neutron radiography. Various conditions such as different

Development of a Precision Nanoindentation Platform

July 18, 2013

Author(s)

Douglas T. Smith, Bartosz K. Nowakowski, Robert F. Cook, Stuart T. Smith, Luis F. Correa

This paper presents the design, construction and performance of a surface- referenced nanoindentation instrument termed a precision nanoindentation platform

G-band micro-fabricated frequency-steered arrays with 2°/GHz beam steering

July 17, 2013

Author(s)

Leonardo M. Ranzani, Daniel G. Kuester, Kenneth Vanhille, Anatoliy Boryssenko, Erich N. Grossman, Zoya Popovic

In this paper, we describe micro-fabricated frequency-scanned slot waveguide arrays operating between 130 and 180 GHz for planetary landing radar. The group

Deterministic Generation of Single-Photons via Multiplexing Repetitive Parametric Downconversions

July 17, 2013

Author(s)

Boris L. Glebov, Jingyun Fan, Alan L. Migdall

We show through Monte Carlo simulation, under realistic experimental conditions that a system which is composed of a just a few repetitive spontaneous

Relationship between CTDI values and measured Peak Skin Dose (PSD)

July 16, 2013

Author(s)

Ronaldo Minniti, Hugo de las Heras Gala, Sean Wilson, Chad Mitchell, Marlene Skopec, Claudia Brunner, Kish Chakrabarti

In this work we relate the CT dose index volume (CTDIvol) readily displayed in all CT units with an actual Peak Skin Dose (PSD) value. Measurements of the CTDI

Parametric seeding of a microresonator optical frequency comb

July 16, 2013

Author(s)

Scott B. Papp, Pascal P. Del'Haye, Scott A. Diddams

We have investigated parametric seeding of a microresonator frequency comb (microcomb) by way of a pump laser with two intensity modulation sidebands. We show

Crystal Chemistry and Phase Diagrams of Three Thermoelectric Alkaline-earth Cobaltite Systems(Ca-M-Co-O, M=Sr, Zn, La)

July 16, 2013

Author(s)

Winnie K. Wong-Ng

Research interest in waste heat conversion using thermoelectric materials has increased substantially in recent years partly because of the increasing price of

Mesoscale Phenomena in Solutions of 3-methylpyridine, Heavey Water, and an Antagonistic Salt

July 16, 2013

Author(s)

Jan Leys, Deepa Subramanian, Eva Rodezno, Boualem Hammouda, Mikhail A. Anisimov

We have investigated controversial issues regarding the mesoscale behavior or 3-methylpyridine 93MP), heavy water, and sodium tetraphenylborate (NaBPh 4)

Preparation of Non-equilibrium Nuclear Spin States in Double Quantum Dots

July 15, 2013

Author(s)

Jacob M. Taylor, Michael Gullans, Jacob J. Krich, Bertrand I. Halperin, M D. Lukin

We theoretically study the dynamic polarization of lattice nuclear spins in GaAs double quantum dots containing two electrons. We introduce a semiclassical

Mode reconstruction of a light field by multi-photon statistics

July 15, 2013

Author(s)

Elizabeth A. Goldschmidt, Fabrizio Piacentini, I. Ruo Berchera, Sergey V. Polyakov, Silke Peters, Stefan Kuck, Giorgio Brida, Ivo P. Degiovanni, Alan L. Migdall, Marco Genovese

Knowing the underlying number and structure of occupied modes of a light field plays a crucial role in minimizing loss and decoherence of quantum information

Multicomponent Chemical Imaging of Pharmaceutical Solid Dosage Forms with Broadband CARS Microscopy

July 15, 2013

Author(s)

Christopher M. Hartshorn, Marcus T. Cicerone, Young J. Lee, Charles H. Camp, John M. Heddleston, Patrick Marsac, Tim Rhodes, Zhen Liu, Nicole Canfield

We compare broadband coherent anti-Stokes Raman scattering (BCARS) microscopy with spontaneous Raman microscopy for quantitative and qualitative assessment of

Absolute spectral responsivity measurements of solar cells by a hybrid optical technique

July 15, 2013

Author(s)

Behrang H. Hamadani, John F. Roller, Brian P. Dougherty, Fiona Persaud, Howard W. Yoon

An irradiance mode, absolute differential spectral response measurement system for solar cells is presented. The system is based on combining the monochromator

3D X-ray Metrology for Block Copolymer Lithography Line-Space Patterns

July 15, 2013

Author(s)

Daniel F. Sunday, Matthew R. Hammond, Chengqing C. Wang, Wen-Li Wu, Regis J. Kline, Gila E. Stein

We report on the development of a new measurement method, resonant critical-dimension small-angle x-ray scattering (CD-SAXS), for the characterization of the

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