Search Publications

NIST Authors in Bold

Displaying 1651 - 1675 of 4634

Scanning Tunneling Microscopy Applied to Optical Surfaces

January 1, 1986

Author(s)

Robert A. Dragoset, R Young, Howard P. Layer, S Mielczarek, E C. Teague, Robert Celotta

… surfaces: a ruled grating replica and a diamond-turned gold mirror. We have demonstrated the ability of the scanning … X 2 υm. Furthermore, surface structure on a diamond-turned gold mirror was observed that could not be detected by any …

Decoupling small-scale roughness and long-range features on deep reactive ion etched silicon surfaces

September 19, 2013

Author(s)

Frank W. DelRio, Lawrence H. Friedman, Michael S. Gaither, William A. Osborn, Robert F. Cook

… Roughness scaling of three different deep reactive ion etched (DRIE) silicon surfaces is investigated using … roughness and long-range features on deep reactive ion etched silicon surfaces …

Advances in Age-Dating of Individual Uranium Particles by Large Geometry Secondary Ion Mass Spectrometry

June 10, 2019

Author(s)

Christopher Szakal, David S. Simons, John D. Fassett, Albert J. Fahey

… be possible. Specifically, we use large geometry secondary ion mass spectrometry (LG-SIMS) to precisely measure the … Individual Uranium Particles by Large Geometry Secondary Ion Mass Spectrometry …

Application of Carbon Nanotube Probes in a Critical Dimension Atomic Force Microscope

March 1, 2007

Author(s)

B C. Park, J Choi, S J. Ahn, D H. Kim, L Joon, Ronald G. Dixson, Ndubuisi George Orji, Joseph Fu, Theodore V. Vorburger

… and end modification, using manipulation and focused ion beam processes, allowed us to implement ball-capped CNT … (AFM), carbon nanotube (CNT) tip, nano-manipulation, ion beam bending (IBB), ion beam induced deposition (IBID), critical dimension (CD) …

Crack Propagation Across an Adhesive Interlayer in Flexural Loading

October 8, 2007

Author(s)

James J. Lee, H Chai, Isabel K. Lloyd, Brian R. Lawn

Crack propagation across interlayers separating adjoining brittle plates in flexure is studied using a model glass/epoxy/glass system. A transverse starter crack in the center glass plate is made to propagate to the nearest epoxy interface, where it

NIST Special Publication 2100-03: Proceedings of the International Conference on Atom-Probe Tomography and Microscopy (APT&M 2018)

December 23, 2019

Author(s)

Keith Knipling, Frederick Meisenkothen, Eric B. Steel

… and John A. Panitz first introduced the atom probe field ion microscope. Now, a half-century later, APT&M returns to … atom probe, atom probe tomography, field ion microscopy, nanoscience, field emission microscopy, field …

Probing Single Nanometer-Scale Pores with Polymeric Molecular Rulers

April 2, 2010

Author(s)

Sarah E. Henrickson, Edmund A. DiMarzio, Qian Wang, Vincent M. Stanford, John J. Kasianowicz

… through a single Staphylococcus aureus ?-hemolysin ion channel. Polynucleotides thread through the channel as … alpha hemolysin, alpha toxin, DNA, ion channel, nanopore, polymer confinement, polynucleotide, …

Structure-Property Relationships at Nafion Thin-Film Interfaces: Thickness Effects on Hydration and Anisotropic Ion Transport

April 3, 2018

Author(s)

Steven C DeCaluwe, Andrew M. Baker, Pavan Bhargava, John E. Fischer, Joseph Dura

… which are compared to published results to estimate the ion mobility in the sample layers. Results demonstrate that … required for accurate conductivity predictions, and that ion mobility decreases as a function of proximity to the … Interfaces: Thickness Effects on Hydration and Anisotropic Ion Transport …

Fabrication of GaN-Based Nanoscale Device Structures Utilizing Focused Ion Beam Induced Pt Deposition

October 16, 2008

Author(s)

Abhishek Motayed, Albert Davydov, Mark D. Vaudin, Igor Levin, John Melngailis, S N. Mohammad

… GaN nanowires and electrical contacts utilizing Focused Ion Beam (FIB) induced Pt deposition. These GaN nanowires … 2) coated p++ Si substrate. A 30KeV Ga(superscript +) ion beam was used to dissociate … of GaN-Based Nanoscale Device Structures Utilizing Focused Ion Beam Induced Pt Deposition …

Modeling of Double-Angle Shear Connections for Evaluation of Structural Robustness

October 31, 2012

Author(s)

Judy Liu, Joseph Main, Fahim H. Sadek

Improved structural robustness is expected for steel gravity load-resisting frames with double-angle shear connections as compared to single-plate connections, given the larger deformation capacity of the double angle. Detailed models of bolted double

A Free-Boundary Model for Duffusion-Induced Grain Boundary Motion

January 1, 2002

Author(s)

P C. Fife, John W. Cahn, C M. Elliott

On the basis of a phase-field model previously proposed in Cahn et al. (acta Mater. 45, 4397-4413 (1997)) to describe the phenomenon of diffusion-induced grain boundary motion (DIGM), we present a formal asymptotic reduction to a moving free boundary

Quantifying Carboxylic Acid Concentration in Model Polyamide Desalination Membranes via Fourier Transform Infrared Spectroscopy

August 21, 2018

Author(s)

Tawanda J. Zimudzi, Kathleen E. Feldman, Michael A. Hickner, Christopher Stafford

… membranes for desalination, hence influencing water and ion transport through the membrane. Model polyamide films … studies, the carboxylic acid concentration for films on gold was 0.35 mmol g-1, whereas analogous films on silicon …

Superconducting Nb DHEB Mixer Arrays for Far-Infrared Spectroscopy

February 12, 2001

Author(s)

Eyal Gerecht, Carl D. Reintsema, Erich N. Grossman, A. L. Betz, R. T. Boreiko

… atmospheres. Our fabricatin process utilizes selective ion milling techniques to produce NB Diffusion-Cooled Hot … Bolometeric (DHEB) mixers from a bilayer thin film of gold/Nb forms the HEB device. The first generation of devices …

Monte Carlo Simulations of Electron Transport in Solids: Applications to Electron Backscattering From Surfaces

April 1, 2005

Author(s)

Aleksander Jablonski, Cedric J. Powell

… from a thin Cu overlayer on a substrate of silicon or gold for primary electrons with energies of 5 keV and 10 keV … electron spectroscopy, backscattered electrons, copper, gold, information radius, mean escape radius, Monte Carlo …

Determination of electron beam energy in measuring the electron-impact ionization cross section of He-like Fe24+

March 17, 2023

Author(s)

Yuri Ralchenko, Galen O'Neil, Paul Szypryt, Joseph N. Tan, Aung S. Naing, Yang Yang, Dipti Dipti, Amy Gall, Adam Hosier, David Schultz, Randall Smith, Nancy Brickhouse, Endre Takacs

… cross sections of He-like $Fe^24+}$ at the electron beam ion trap (EBIT) facility of the National Institute of Standards …

XAFS as a Direct Local Structural Probe in Revealing the Effects of a C Presence in B Diffusion in SiGe Layers

October 12, 2021

Author(s)

M A. Sahiner, J. L. Sarrao, M S. Carroll, C W. Magee, S W. Novak, Joseph Woicik

… sites. The concentration profiles obtained from secondary ion mass spectrocopy are correlated with the Ge XAFS results. …

Multimodality of Structural, Electrical, and Gravimetric Responses of Intercalated MXenes to Water

November 28, 2017

Author(s)

Eric S. Muckley, Michael Naguib, Hsiu-Wen Wang, Lukas Vlcek, Naresh C. Osti, Robert L. Sacci, Xiahan Sang, Raymond R. Unocic, Yu Xie, Madhu Sudan Tyagi, Eugene Mamontov, Katharine L. Page, Paul R. C. Kent, Jagjit Nanda, Ilia N. Ivanov

… gravimetric peculiarities of water vapor interaction with ion-intercalated MXenes used to design of a multimodal …

Constraints on Exotic Dipole-Dipole Couplings between Electrons at the Micrometer Scale

August 17, 2015

Author(s)

Shlomi Salman Kotler, R. Ozeri, Derek F. Kimball

New constraints on exotic dipole-dipole interactions between electrons at the micrometer scale are established, based on a recent measurement of the magnetic interaction between two trapped 88Sr+ ions. For light bosons (mass ≤ 0.1 eV) we obtain 90%

Quantum Harmonic Oscillator State Synthesis and Analysis

January 1, 1997

Author(s)

Wayne M. Itano, C R. Monroe, D M. Meekhof, Dietrich G. Leibfried, B E. King, David J. Wineland

… We laser-cool single beryllium ions in a Paul trap to the ground (n = 0) quantum harmonic oscillator state …

Characterization of Standard Reference Material 2944, Bi-Ion-Doped Glass, Spectral Correction Standard for Red Fluorescence

March 13, 2013

Author(s)

Paul C. DeRose, Melody V. Smith, Jeffrey R. Anderson, Gary W. Kramer

… Reference Material (SRM) 2944 is a cuvette-shaped, Bi-ion-doped glass, recommended for use for relative spectral … Characterization of Standard Reference Material 2944, Bi-Ion-Doped Glass, Spectral Correction Standard for Red …

Gold Black Coatings for Pyroelectric Detectors

January 1, 2003

Author(s)

J Lehman, E Theocharous, George P. Eppeldauer, C Pannell

… Gold Black Coatings for Pyroelectric Detectors …

A Turbulence Model Sensitivity Analysis on the Hydraulic Behavior in the Inlet Plenum of the Proposed NIST Neutron Source Design

August 20, 2023

Author(s)

Abdullah Weiss, Joy Shen, Anil Gurgen

The NIST Neutron Source, or NNS, is a proposed reactor designed to eventually replace the aging National Bureau of Standards Reactor at the NIST Center for Neutron Research (NCNR). The NNS is a light water moderated and cooled, compact reactor used to

Recent progress in spectroscopy of tungsten

May 20, 2011

Author(s)

Alexander Kramida

… Most of the measurements were made using electron-beam ion traps (EBITs). Two laser-spectroscopy studies resulted in … some light on the complex electronic structure of this ion and identifies some experimentally observed transitions. …

Nuclear Magnetic Resonance Study of Atomic Motions in A 2 B 12 H 12 (A = Na, K, Rb, Cs): Anion Reorientations and Na +} Mobility

November 22, 2013

Author(s)

Alexander V. Skripov, Olga A. Babanova, Alexei V. Soloninin, Vitalie Stavila, Kristina Verdal, Terrence J. Udovic, John J. Rush

… dodecahydro-closo-dodecaborate, ionic compounds, ion mobility, Na ion diffusion, nuclear magnetic resonance, nuclear spin …

Chemical composition of dental gold casting alloy and dental wrought gold wire alloys ::progress report

January 1, 1968

Author(s)

J D Eick, H J Caul, T Hegdahl, G Dickson

… Chemical composition of dental gold casting alloy and dental wrought gold wire alloys ::progress report …

Advanced communications
-Open Radio Access Network (Open-RAN)
-Quantum communications
-Spectrum sharing
-Wireless (RF)
Artificial intelligence
-AI measurement and evaluation
-Autonomous systems
--Automated vehicles
--Autonomous laboratories
-Applied AI
-Fundamental AI
-Hardware for AI
-Machine learning
-Trustworthy and responsible AI
Bioscience
-Bioeconomy
--Biological data
-Bioimaging
-Bioinformatics
-Biomanufacturing
-Biomaterials
-Biometrology
-Biosecurity
--Biosurveillance
--Genomic cybersecurity
--Nucleic acid sequence screening
-Cell measurements
-Engineering / synthetic biology
--Biofabrication
--Cell-free systems
--Genome engineering
--Protein engineering
-Gene delivery systems
-Genome editing
-Genomics
-Glycomics
-Metabolomics
-Microbial measurements
-Proteomics
Buildings and Construction
-Building codes and standards
-Building control systems
-Building damage and repair
-Building economics
-Building materials
-Energy efficiency
-Heating, ventilation and air conditioning equipment
-Indoor air quality
-Structural engineering
-Thermal comfort
Chemistry
-Analytical chemistry
-Chemical engineering and processing
-Chemical thermodynamics and chemical properties
-Molecular characterization
-Theoretical chemistry and modeling
-Thermochemical properties
Electronics
-Electromagnetics
-Flexible electronics
-Magnetoelectronics
-Optoelectronics
-Organic electronics
-Semiconductors
-Sensors
-Superconducting electronics
Energy
-Alternative energy
-Conventional energy
-Electric power / smart grid
-Fuels
Environment
-Air / water / soil quality
-Climate Measurements
-Environmental health
-Greenhouse gas measurements
-Marine science
-Sustainability
Fire
-Fire detection
-Fire dynamics and science
-Fire fighting
-Fire modeling
-Fire risk reduction
-Materials flammability
-Structural fire resistance
-Wildland urban interface fire
Forensic Science
-Digital evidence
-Drugs and toxicology
-Firearms and toolmarks
-Forensic biometrics
-Forensic genetics
-Trace evidence
Health
-Biopharmaceuticals
-Cell and gene therapy
-Clinical diagnostics
--Cancer
--Medical imaging
-Food and nutrition
-Human microbiome
-Precision medicine
-Regenerative medicine and advanced therapy
--Flow cytometry
Information technology
-Biometrics
-Cloud computing and virtualization
-Complex systems
-Computational science
-Conformance testing
-Cyber-physical systems
--Smart cities
-Cybersecurity and privacy
--Cryptography
--Cybersecurity education and workforce development
--Cybersecurity measurement
--Identity and access management
--Privacy engineering
--Risk management
--Securing emerging technologies
--Trustworthy networks
--Trustworthy platforms
-Data and informatics
--Human language technology
--Information retrieval
--Natural language processing
-Digital twins
-Federal information processing standards (FIPS)
-Health IT
-Internet of Things (IoT)
-Interoperability testing
-Location based services
-Mobile
-Networking
--Mobile and wireless networking
--Network management and monitoring
--Network modeling and analysis
--Network security and robustness
--Network test and measurement
--Next generation networks
--Protocol design and standardization
--Software defined and virtual networks
-Software research
--Software testing
-Usability and human factors
--Accessibility
-Video analytics
-Virtual / augmented reality
-Visualization research
-Voting systems
Infrastructure
Manufacturing
-Additive manufacturing
-Factory communications
-Factory operations planning and control
-Interoperability in manufacturing
-Machining
-Manufacturing economics
-Manufacturing quality assurance
-Manufacturing systems design and analysis
-Monitoring, diagnostics and prognostics
-Process improvement
-Process measurement and control
-Product data
-Robotics
--Agility and adaptability
--Collaborative robots
--Dexterous grasping
--Manipulation
--Mobility and industrial autonomous vehicles
--Navigation / actuation / control
--Sensing and perception
-Supply chain
-Sustainable manufacturing
-Systems engineering
-Systems integration
-Technology commercialization
Materials
-Ceramics
-Composites
-Concrete / cement
-Materials characterization
--Composition and structure
--Mechanical properties
--Thermal properties
-Metals
-Modeling and computational material science
-Polymers
-Superconductors
Mathematics and statistics
-Experiment design
-Image and signal processing
-Modeling and simulation research
-Numerical methods and software
-Statistical analysis
-Uncertainty quantification
Metrology
-Amount of substance
-Dimensional metrology
-Electrical / electromagnetic metrology
-Flow metrology and rheology
-Force metrology
-Humidity metrology
-Ionizing radiation metrology
-Mass metrology
-Metric
-Optical / photometry / laser metrology
-Pressure and vacuum metrology
-Thermometry metrology
-Time and frequency metrology
-Weights and measures
Nanotechnology
-Nanobiotechnology
-Nanochemistry
-Nanoelectronics
-Nanofabrication / manufacturing
--Lithography
--Self-assembly
-Nanofluidics
-Nanomagnetics
-Nanomaterials
-Nanomechanics
-Nanometrology
-Nanophotonics
-Nanophysics
-Nanoplasmonics
Neutron research
Performance excellence
-Assessment tools and services
-Baldrige award
-Baldrige examiners
-Baldrige Framework and Criteria
-Best practices
-Leadership development
Physics
-Atomic / molecular / quantum
-Biological physics
-Condensed matter
-Electron physics
-Magnetics
-Nuclear physics
-Optical physics and communications
-Quantum information science
-Radiation
-Spectroscopy
-Thermodynamics
-Time and frequency
Public safety
-Chemical / Biological / Radiological / Nuclear / Explosives (CBRNE)
-First responder preparedness
-Law enforcement
-Public safety communications research
-Response robots
Resilience
-Community resilience
--Recovery
--Resilience metrics
-Disaster and failure studies
-Earthquake risk reduction
-Resilience economics
-Resilient materials
-Windstorm impact reduction
Standards
-Accreditation
-Calibration services
-Conformity assessment
-Documentary standards
-Frameworks
-Quality assurance
-Reference data
-Reference instruments
-Reference materials
-Standards education
Technology transfer
Transportation
-Aerospace
-Automotive