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Journals

Characterization of Standard Reference Material 2941, Uranyl-Ion-Doped Glass, Spectral Correction Standard for Fluorescence

February 1, 2008

Author(s)

Paul C. DeRose, Melody V. Smith, Klaus Mielenz, Douglas H. Blackburn, Gary W. Kramer

Standard Reference Material (SRM) 2941 is a cuvette-shaped, uranyl-ion-doped glass, recommended for use for relative spectral correction of emission and day-to...

Evaluation of Blackbody Cavity Emissivity in the Infrared Using Total Integrated Scatter Measurements

February 1, 2008

Author(s)

Leonard M. Hanssen, Sergey Mekhontsev, Jinan Zeng, A Prokhorov

Deviations from ideal blackbody (BB) behavior can be characterized by a BB s effective emissivity. The cavity emissivity is most often obtained through a model...

Estimating the Triple Point Isotope Effect and the Corresponding Uncertainties for Cryogenic Fixed Points

February 1, 2008

Author(s)

Weston L. Tew

The estimation of sensitivities of melting temperatures due to isotopic variations in monatomic and diatomic atmospheric gases is developed from both...

3-Dimensional Compositional Analysis in Drug Eluting Stent (DES) Coatings Using Cluster Secondary Ion Mass Spectrometry (Cluster SIMS)

February 1, 2008

Author(s)

Christine M. Mahoney, A M. Belu, Albert J. Fahey

Cluster Secondary Ion Mass Spectrometry (cluster SIMS) employing an SF5+ polyatomic primary ion sputter source in conjunction with a Bi3+ analysis source was...

Diffusion Confusion

February 1, 2008

Author(s)

Edward F. Kelley

We discuss the true definitions of specular and diffuse reflection. Many people think that diffuse reflection is Lambertian reflection. Such is not the case...

Giant Pop-Ins in Nanoindented Silicon and Germanium Caused by Lateral Cracking

February 1, 2008

Author(s)

David J. Oliver, Brian R. Lawn, Robert F. Cook, M G. Reitsma, J E. Bradby, Juana S. Williams, Paul Munroe

The Accuracy and Stability of Quartz Watches

February 1, 2008

Author(s)

Michael A. Lombardi

A short review article about quartz wristwatches that presents measurements of their accuracy and stability. Measurements of both the stepping motors and...

Comb-Generator Characterization

February 1, 2008

Author(s)

Howard C. Reader, Dylan Williams, Paul D. Hale, Tracy S. Clement

We characterize a 50 GHz comb generator measured on a sampling oscilloscope. With careful control of the input power, input harmonics and comb generator...

Fermi-Fermi Mixtures in the Strong Attraction Limit

January 31, 2008

Author(s)

Menderes Iskin, Carlos Sa de Melo

The phase diagrams of low density Fermi-Fermi mixtures with equal or unequal masses and equal or unequal populations are described at zero and finite...

Freestyle Data Fitting and Global Temperatures

January 31, 2008

Author(s)

Barend J. Thijsse, Bert W. Rust

This paper presents a method for separating signal (trend) from noise in a set of measured bivariate data when there is no mathematical model for that signal...

MACS—a new high intensity cold neutron spectrometer at NIST

January 30, 2008

Author(s)

J A Rodriguez, Daniel Adler, P C Brand, Collin L. Broholm, Jeremy Cook, Christoph Brocker, R Hammond, Z Huang, P Hundertmark, J W Lynn, N C Maliszewskyj, J Moyer, J Orndorff, Donald J. Pierce, T D Pike, G Scharfstein, S A Smee, Rodrigo Vilaseca

We describe a novel cold neutron spectrometer under development at NIST optimized for wave vector resolved spectroscopy with incident energies between 2.1 meV...

Green Fluorescent Protein in Inertially Injected Aqueous Nanodroplets

January 30, 2008

Author(s)

Jianyong Tang, Ana Jofre, Geoffrey Lowman, Rani Kishore, Joseph E. Reiner, Kristian Helmerson, Lori S. Goldner, M E. Greene

We inertially inject and study the contents of optically trappable aqueous nanodroplets (hydrosomes) emulsified in a perfluorinated matrix. A new piezoelectric...

Gain-assisted superluminal optical solitons at very low light intensity

January 30, 2008

Author(s)

Lu Deng, Guoxiang Huang, C Hang

We show the possibility of generating gain-assisted superluminal optical solitons in a room- temperature three-state active Raman gain medium. We demonstrate...

Density of states measurements of Al lightly doped with Mn

January 29, 2008

Author(s)

Galen O'Neil, Dan Schmidt, Nathan A. Tomlin, Joel Ullom, Kent D. Irwin, Anthony S. Williams, Gerry Arnold, Steve T. Ruggiero

Al lightly doped with Mn is a tunable superconductor, potentially useful in normalmetal/insulator/superconductor refrigerators. The superconducting transition...

Vibrational Dephasing Time Imaging by Time-Resolved Broadband Coherent Anti-Stokes Raman Scattering Microscopy

January 28, 2008

Author(s)

Young Jong Lee, Marcus T. Cicerone

Time delay control in broadband coherent anti-Stokes Raman scattering (CARS) allows acquisition of time-resolved CARS images free of non-resonant background...

Analysis of Nuclear Material by Alpha Spectroscopy with a Transition-Edge Microcalorimeter

January 26, 2008

Author(s)

Rob Horansky, Joel Ullom, James A. Beall, Gene C. Hilton, Kent D. Irwin, Leila R. Vale, Don Dry, Stephen Lamont, Clifford R. Rudy, Michael W. Rabin

We present measurements from a cryogenic microcalorimeter designed to detect alpha particles. The enhanced resolution of microcalorimeter alpha detectors will...

Characterization of 26 miniSTR loci for improved analysis of degraded DNA samples

January 25, 2008

Author(s)

Carolyn R. Steffen, Margaret C. Kline, Michael Coble, John M. Butler

An additional 20 novel mini-short tandem repeat (miniSTR) loci have been developed and characterized to aid in the analysis of degraded DNA samples. These new...

A TDMA Hybrid SQUID Multiplexer

January 25, 2008

Author(s)

Carl D. Reintsema, James A. Beall, W.Bertrand (Randy) Doriese, William Duncan, S. L. Ferreira, Gene C. Hilton, Kent D. Irwin, Dan Schmidt, Joel Ullom, Leila R. Vale, Yizi Xu

We have developed a multiplexed read-out for transition edge sensors based on a hybrid time- and frequency-domain basis set, similar to that used in time...

Materials Analysis with Cryogenic Sensors

January 24, 2008

Author(s)

Joel N. Ullom

Low temperature photon detectors are increasingly attractive tools for materials analysis. Their range of applications has broadened from early work on x-ray...

Determination of Work Functions in the Ta_1-xAl_xN_y/HfO₂ Advanced Gate Stack Using Combinatorial Methodology

January 24, 2008

Author(s)

Kao-Shuo Chang, Martin L. Green, Jason Hattrick-Simpers, John S. Suehle, Ichiro Takeuchi, Ozgur Celik, S De Gendt

Combinatorial methodology enables the generation of comprehensive and uniform samples, and therefore data sets, compared to the one-composition-at-a-time...

Combinatorial Methodology for the Exploration of Metal Gate Electrodes on HfO₂ for the Advanced Gate Stack

January 23, 2008

Author(s)

Kao-Shuo Chang, Martin L. Green, John S. Suehle, Jason Hattrick-Simpers, Ichiro Takeuchi, K Ohmori, T Chikyow, S De Gendt, Prashant Majhi

Combinatorial methodology offers an efficient platform to accelerate the exploration of new materials. We demonstrate the effectiveness of this technique on the...

A diode-pumped Yb:KYW femtosecond laser frequency comb with stabilized carrier-envelope offset frequency

January 23, 2008

Author(s)

Stephanie Meyer, J A. Squier, Scott A. Diddams

We describe the detection and stabilization of the carrier envelope offset (CEO) frequency of a diode-pumped Yb:KYW (ytterbium- doped potassium yttrium...

Operation of an X-ray transition-edge sensor cooled by tunnel junction refrigerators

January 19, 2008

Author(s)

Nathan A. Tomlin, James A. Beall, Gene C. Hilton, Kent D. Irwin, Galen O'Neil, Dan Schmidt, Leila R. Vale, Joel Ullom

We demonstrate successful cooling of an X-ray transition-edge sensor (TES) using solid-state refrigerators based on normal-metal/insulator/superconductor (NIS)...

The Modified-Single Fiber Test: A Methodology for Monitoring Ballistic Performance

January 18, 2008

Author(s)

Jae Hyun Kim, Walter G. McDonough, William R. Blair, Gale A. Holmes

In an effort to develop a minimally invasive testing methodology for monitoring the in-service performance of soft body armor, the ASTM D3379-75 standard was...

Current Status of the Quantum Metrology Triangle

January 18, 2008

Author(s)

Mark W. Keller

The quantum metrology triangle is a test of the consistency of three quantum electrical standards: the single-electron tunneling current standard, the Josephson...

256-Channel Magnetic Imaging System

January 18, 2008

Author(s)

Fabio C. da Silva, Sean Halloran, Anthony B. Kos, David P. Pappas

We present the design and fabrication of a magentoresistive imaging system capable of measuring 256 channels simultaneously along linear ranges of 4 mm and 13...

Demonstration of a Multiplexer of Dissipationless SQUIDs}

January 18, 2008

Author(s)

John Mates, Gene C. Hilton, Kent D. Irwin, Leila R. Vale, Konrad Lehnert

We report on the development of a microwave SQUID multiplexer for reading out arrays of low-temperature detectors. In this frequency-division multiplexer, each...

Constraints on a Synthetic-Noise Source for Johnson Noise Thermometry

January 18, 2008

Author(s)

David R. White, Samuel Benz

Conventional Johnson noise thermometers based on switching correlators have conflicting matching requirements for the sensing resistance. To mitigate distortion...

Terahertz Mobility Measurements on P3HT Films: Device Comparison, Molecular Weight and Film Processing Effects

January 17, 2008

Author(s)

Okan Esenturk, Joseph S. Melinger

We report the first direct comparison of relative carrier mobilities in semiconducting organic polymer films measured using non-contact optical pump terahertz...

In Situ Ultra-Small-Angle X-Ray Scattering Study of the Solution-Mediated Formation and Growth of Nanocrystalline Ceria

January 16, 2008

Author(s)

Andrew J. Allen, Vincent A. Hackley, P R. Jemian, Jan Ilavsky, J M. Raitano, S W. Chan

A remote-controlled isothermal circulating fluid flow cell is described and results presented for the in situ ultra-small-angle x-ray scattering (USAXS) study...

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