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Search Publications

NIST Authors in Bold

Displaying 21826 - 21850 of 73697

Development of a New, Precise Near-infrared Doppler Wavelength Reference: A Fiber Fabry-Perot Interferometer

January 31, 2013
Author(s)
Samuel Halverson, Suvrath Mahadevan, Lawrence W. Ramsey, Stephen L. Redman, Gillian Nave, John C. Wilson , Fred Hearty, Jon Holtzman
We present the ongoing development of a commercially available Micron Optics ber-Fabry Perot Interferometer as a precise, stable, easy to use, and economic spectrograph reference with the goal of achieving 1 m s..1 long term stability. Fiber Fabry-Perot

Frequency Dependent Charge Pumping -- A Defect Depth Profiling Tool?

January 31, 2013
Author(s)
Jason T. Ryan, Richard G. Southwick, Jason P. Campbell, Kin P. Cheung, John S. Suehle
We investigate the validity of using frequency-dependent charge pumping (FD-CP) to determine bulk defect depth distributions. Using simple physical arguments we conclude that: (1) the effective tunneling length to a bulk defect can be very different than

Modeling the Evacuation of the World Trade Center Towers on September 11, 2001

January 31, 2013
Author(s)
Erica D. Kuligowski, Richard D. Peacock, Jason D. Averill
This paper provides an analysis of the evacuation of the World Trade Center towers culled from telephone and face-to-face interviews with survivors. A decedent analysis explores where occupants were located when each tower was attacked. Multiple regression

SERIES RESISTANCE: A MONITOR FOR HOT CARRIER STRESS

January 31, 2013
Author(s)
Jason P. Campbell, Serghei Drozdov, Kin P. Cheung, Richard G. Southwick, Jason T. Ryan, John S. Suehle, Anthony Oates
In this work, we examine a series resistance extraction technique which yields accurate values from single nano-scale devices. The series resistance values, derived from this extraction technique, are shown to be sensitive to hot carrier degradation and

Techniques for microwave near-field quantum control of trapped ions

January 31, 2013
Author(s)
Ulrich J. Warring, C. Ospelkaus, Yves Colombe, Kenton R. Brown, Jason Amini, M Carsjens, Dietrich G. Leibfried, David J. Wineland
In Ospelkaus et al. [Nature 476, 181 (2011)] a microwave near-field quantum control of spin and motional degrees of freedom of one and two 25Mg+ ions enabled two-ion entanglement. In this report, we extend on the description of the experimental setup and

ELECTRICAL AND PHYSICAL CHARACTERIZATION OF BILAYER CARBOXYLIC ACID FUNCTIONALIZED MOLECULAR LAYERS

January 30, 2013
Author(s)
Sujitra J. Pookpanratana, Joseph W. Robertson, Cherno Jaye, Daniel A. Fischer, Curt A. Richter, Christina A. Hacker
We have used Flip Chip Lamination (FCL) to form monolayer and bilayer molecular junctions of carboxylic acid-containing molecules with Cu atom incorporation. Carboxylic acid-terminated monolayers are self-assembled onto ultrasmooth Au using thiol chemistry

Fourth NIST Workshop on Carbon Nanotubes: Chirality Measurements

January 30, 2013
Author(s)
Jeffrey A. Fagan
On September 23rd and 24th, 2010, the National Institute of Standards and Technology (NIST) hosted the fourth in a series of workshops addressing measurement needs for single wall carbon nanotubes (SWCNTs). Attendees representing an international community

ITRS Chapter: MEMS

January 30, 2013
Author(s)
Michael Gaitan
The ITRS has organized a MEMS Technology Working Group (TWG), which has developed a new chapter on MEMS for its 2011 report. The report focuses on MEMS technologies associated with mobile Internet devices, such as smartphones and tablet computers. These

Stratified Graphene-Noble Metal Systems for Low-Loss Plasmonics Applications

January 30, 2013
Author(s)
Anna L. Rast, Timothy Sullivan, Vinod K. Tewary
We demonstrate numerically that bulk plasmon losses in noble metal films can be significantly reduced through the addition of a graphene coating and hexagonal boron nitride substrate. Silver films with a trilayer graphene coating and hBN substrate

Crystal Structure of NaY Zeolite with Adsorbed CO2 by Neutron Powder Diffraction

January 29, 2013
Author(s)
Winnie K. Wong-Ng, James A. Kaduk, Qingzhen Huang, Laura Espinal, Martin L. Green
The crystal structure of dehydrated NaY zeolite (Na-FAU structure type) with and without adsorbed CO2 has been determined at room temperature (RT) and at 4 K using neutron powder diffraction techniques. The CO2-containing sample was prepared at -78 °C and

Joint Spectral Measurements at the Hong-Ou-Mandel Interference Dip

January 29, 2013
Author(s)
Thomas Gerrits, Francesco F. Marsili, Varun B. Verma, Adriana E. Lita, Antia A. Lamas-Linares, Jeffrey A. Stern, Matthew Shaw, William Farr, Richard P. Mirin, Sae Woo Nam
We employed a 2 channel single-photon detection system with high detection efficiency and low jitter to characterize the joint spectral distribution (JSD) of the correlated photons emerging from a Hong-Ou-Mandel interference arrangement. We show the JSDs

EXPOSING WOOD DECKING ASSEMBLIES TO CONTINUOUS WIND-DRIVEN FIREBRAND SHOWERS

January 28, 2013
Author(s)
Samuel L. Manzello, Sayaka S. Suzuki
Sections of wood decks (1.2 m by 1.2 m) were constructed and attached to a re-entrant corner assembly. The deck/re-entrant corner assembly was then exposed to continuous, wind-driven firebrand bombardment generated by the newly developed NIST full-scale

On a generalization of the generating function for Gegenbauer polynomials

January 28, 2013
Author(s)
Howard S. Cohl
We derive a Gegenbauer polynomial expansion for complex powers of the distance between two points in $d$-dimensional Euclidean space. The argument of the Gegenbauer polynomial in the expansion is given by the cosine of the separation angle between the two

Simultaneous positioning and orientation of single nano-wires using flow control

January 28, 2013
Author(s)
Pramod Mathai, Peter T. Carmichael, Benjamin Shapiro, James A. Liddle
We present a method for manipulating both the position and orientation of nanowires (NWs) by feedback control of flows that does not require that the NWs have speci fic material properties (other methods require, for example, that the NWs be

Refrigerant Properties for Heat Transfer Analysis

January 27, 2013
Author(s)
Mark O. McLinden
Presentation at 2013 Winter Annual Meeting of the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), Dallas, Texas, January 27, 2013. The importance of fluid properties for heat transfer analysis in refrigeration

Nonlinear acoustic effects in multilayer ceramic capacitors

January 25, 2013
Author(s)
Ward L. Johnson, Sudook A. Kim, Timothy P. Quinn, Grady S. White
Nonlinear resonant acoustics was explored as an approach for nondestructively evaluating the susceptibility of BaTiO3-based multilayer ceramic capacitors to electrical failure during service. The acoustic nonlinearity was characterized through measurements

Tunnel junction sensors for HCI-surface measurements at low kinetic energies

January 25, 2013
Author(s)
Joshua M. Pomeroy, Russell E. Lake
In recent years, we have developed and deployed the capability to make and use tunnel junctions sensors (TJS) as extremely sensitive tools for the measurement of surface nanofeatures created by particle surface interactions. Highly charged ion (HCI)
Displaying 21826 - 21850 of 73697
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