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Displaying 42776 - 42800 of 143816

On-chip, photon-number-resolving, telecom-band detectors for scalable photonic information processing

May 6, 2012

Author(s)

Thomas Gerrits, Nick Thomas-Peter, James Gates, Adriana E. Lita, Benjamin Metcalf, Brice R. Calkins, Nathan A. Tomlin, Anna E. Fox, Antia A. Lamas-Linares, Justin Spring, Nathan Langford, Richard P. Mirin, Peter Smith, Ian Walmsley, Sae Woo Nam

We demonstrate an integrated photon-number resolving detector, operating in the telecom band at 1550 nm, employing an evanescently coupled design that allows the detector to be placed at arbitrary locations within a planar optical circuit. Up to 5 photons

Overview of Recent Atomic Spectroscopy At The NIST EBIT

May 5, 2012

Author(s)

John D. Gillaspy

Seven papers published by the NIST EBIT spectroscopy team and collaborators from mid-2009 to mid-2011 are summarized. Previous discussions of the D-lines in Na-like ions and the Lyman-alpha lines in H-like ions are updated with new information. Nine issues

Design, fabrication and characterization of a single-layer out-of-plane electrothermal actuator for SOI-MEMS Applications

May 3, 2012

Author(s)

Yong Sik Kim, Nicholas Dagalakis, Satyandra K. Gupta

This paper presents the design, fabrication and characterization of a single-layer out-of-plane electrothermal actuator based on MEMS (Micro-Electro-Mechanical System). The proposed electrothermal actuator is designed to generate motions along the out-of

Nanoscale mapping of contact stiffness and damping by contact-resonance atomic force microscopy

May 3, 2012

Author(s)

Gheorghe Stan, Robert F. Cook

In this work, a new procedure is demonstrated to retrieve the conservative and dissipative contributions to contact-resonance atomic force microscopy (CR-AFM) measurements from the contact resonance frequency and resonance amplitude. By simultaneously

Computational Seebeck Coefficient Measurement Simulations

May 2, 2012

Author(s)

Joshua B. Martin

We have employed finite element analysis to develop computational Seebeck coefficient metrology simulations. This approach enables a unique exploration of multiple probe arrangements and measurement techniques within the same temporal domain. To

Osmotic virial coefficients for model protein and colloidal solutions: Importance of ensemble constraints

May 2, 2012

Author(s)

Daniel Siderius, William P. Krekelberg, Christopher J. Roberts, Vincent K. Shen

Rayleigh light scattering is often used to quantify protein-protein interactions in solution via experimental measurement of the osmotic second virial coefficient (OSVC), but analysis of measurements from such experiments requires identification of a

RDA Implementation @ NIST Research Library

May 2, 2012

Author(s)

Sally J. Roberts

A Comparison of Harwell & FWT Alanine Temperature Coefficients for 25 degC to 80 degC

May 1, 2012

Author(s)

Marc F. Desrosiers, Anne M. Forney, James M. Puhl

Dosimeters used to monitor industrial irradiation processing commonly experience significant temperature rises that must be considered in the dose analysis stage. The irradiation-temperature coefficient for a dosimetry system is derived from the dosimeter

A diffuse-interface Model of Reactive Wetting with Intermetallic Formation

May 1, 2012

Author(s)

Walter Villaneuva, William J. Boettinger, Geoffrey B. McFadden, James A. Warren

A diffuse-interface model of reactive wetting with intermetallic formation is developed that incorporates fluid flow, phase change, and solute diffusion. The model is based on the total molar Gibbs energy of a ternary system with four phases. Numerical

A Review of Test Artifacts for Additive Manufacturing:

May 1, 2012

Author(s)

Shawn Moylan, April Cooke, Kevin Jurrens, John Slotwinski, M. Alkan Donmez

A systematic approach to the study of accelerated weathering in building joint sealants

May 1, 2012

Author(s)

Christopher C. White, Donald L. Hunston, Kar T. Tan, James J. Filliben

An accurate service life prediction model is urgently needed for building joint sealants to reduce the enormous cost associated with long-term field weathering. A stepping stone to the success of this effort is the precise control of environmental

A two-fluid model for the transition shape in transition-edge sensors

May 1, 2012

Author(s)

Douglas A. Bennett, Daniel S. Swetz, Robert D. Horansky, Daniel R. Schmidt, Joel N. Ullom

Superconducting microcalorimeters based on transition-edge sensors (TESs) are being successfully used in applications ranging from optical photon counting to gamma-ray and alpha particle spectroscopy. Practical instruments often require a complex

Applied and Computational Mathematics Division, Summary of Activities for Fiscal Year 2011:

May 1, 2012

Author(s)

R.F. Boisvert

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