Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Conferences

Noise Temperature for Nb DHEB Mixer Receiver for Far-Infrared Spectroscopy

September 1, 2002

Author(s)

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

We are reporting a noise temperature measured on a diffusion-cooled hot electron bolometeric (DHEB) mixer designed for a heterodyne focal plane array to study

NbN Film Development for PHEB Devices

September 1, 2002

Author(s)

Eyal Gerecht, V. A. Bhupathiraju, Erich N. Grossman, Jeffrey W. Nicholson, Fernando Rodriguez-Morales, Dazhen Gu, Sigfrid Yngvesson

We have developed a process for fabricating a thin NbN film at the National Institute of Standards and Technology in Boulder, CO. A two-fold approach can be

Kinetic Minimum-Power Routing and Clustering in Mobile Ad-Hoc Networks

September 1, 2002

Author(s)

Camillo Gentile, R E. Van Dyck, J Haerri

We have previously developed a distributed routing algorithm which minimizes the number of overhead messages necessary to maintain the minimum-power multi-hop

Effects of Wafer Emissivity on Rapid Thermal Processing Temperature Measurement

September 1, 2002

Author(s)

D H. Chen, D P. DeWitt, Benjamin K. Tsai, Kenneth G. Kreider, William A. Kimes

Lightpipe radiation thermometers (LPRTs) are widely used to measure wafer temperatures in rapid thermal processing (RTP) tools. Using blackbody-calibrated LPRTs

Preliminary Design and Manufacturing Planning Integration Using Intelligent Agents

September 1, 2002

Author(s)

Shaw C. Feng, Eugene Song

Intelligent agents can enable the integration of preliminary design with manufacturing planning software systems. These agents execute in a computer-based

NIST RM (Reference Material) 8240/8250 Standard Bullets and Casings Project

September 1, 2002

Author(s)

Jun-Feng Song, Theodore V. Vorburger, Susan M. Ballou, M Ols

The NIST RM (Reference Material) 8240/8250 Standard Bullets and Casings Project aims to support the National Integrated Ballistics Information Network (NIBIN)

Comparison of Stimulated and Spontaneous Scattering Measurements of the Full Wavelength Dependence of the Raman Gain Spectrum

September 1, 2002

Author(s)

Nathan R. Newbury, Kristan L. Corwin

We present a direct comparison of the measured spontaneous Raman spectra and the measured stimulated Raman gain from a pump laser. We confirm that the

Four-state measurement method for polarization dependent wavelength shift

September 1, 2002

Author(s)

William C. Swann, Shellee D. Dyer, Rex M. Craig

We present a novel four-state method for measuring the polarization dependent wavelength shift (PDW) of a fiber Bragg grating. We show that measurement of the

Accuracy of AlGaAs Rates and Composition Determination Using RHEED Oscillations

September 1, 2002

Author(s)

Todd E. Harvey, Kristine A. Bertness, Chih-Ming Wang, Jolene Splett

Reflection high-energy electron diffraction (RHEED) oscillations are widely used in molecular beam epitaxy (MBE) as a technique to calibrate material growth

High-resolution Group Delay Measurements of a Hydrogen Cyanide Gas Cell Using Low-coherence Interferometry

September 1, 2002

Author(s)

Shellee D. Dyer, Robert J. Espejo, Paul A. Williams

We demonstrate interferometric measurements of the relative group delay of a hydrogen cyanide gas cell with group-delay resolution of 0.3 ps at a wavelength

Effects of Noise Level in Fitting In-Situ Optical Reflectance Spectroscopy Data

September 1, 2002

Author(s)

Chih-chiang Fu, Kristine A. Bertness, Chih-Ming Wang

We discuss the combination of noise level and scaling factor accuracy needed in optical reflectance spectroscopy data in order to obtain accurate parameters by

Micro-Mirror Array Control of Optical Tweezer Trapping Beams

August 28, 2002

Author(s)

Nicholas Dagalakis, Thomas W. LeBrun, J Lippiatt

The efficiency of optical tweezer manufacturing depends on the number of trapping beams available. Micro optics technology offers the opportunity to

Shielding Effectiveness Measurements Using the Direct Illumination Technique

August 20, 2002

Author(s)

Chriss A. Grosvenor, David R. Novotny, Robert T. Johnk, Seturnino Canales, Jason Veneman

In this paper we discuss the direct illumination and reverberation chamber techniques for measuring shielding effectiveness. using the reverberation chamber as

A Discussion of Losses and Changes in the Characteristic Impedance of Finitely-Conducting Planar Transmission Line Structures

August 19, 2002

Author(s)

Christopher L. Holloway

This paper discusses the effects that finite conductors have on the propagation characteristics of planar transmission lines structures. Closed form expressions

Measurement and Simulation of a Semi-anechoic Room Using Field Mapping as an Indication of Chamber Quality

August 19, 2002

Author(s)

Donna Beals, Christopher L. Holloway, Paul McKenna

In this paper we discuss the use of a field mapping approach for determining chamber quality. Both measurements and simulation results are used to illustrate

Coupling to Devices in Electrically Large Cavities, or Why Classical EMC Evaluation Techniques are Becoming Obsolete

August 19, 2002

Author(s)

John M. Ladbury, T. H. Lehman, Galen H. Koepke

We show that the coupling between a sensor in an electrically large cavity and the outside world is a very complicated problem, with small changes inside the

Pseudo-Isotropic Source for Anechoic Chamber Qualification

August 19, 2002

Author(s)

Perry F. Wilson, John M. Ladbury, Galen H. Koepke

A pseudo-isotropic source is presented. The source consists of an electrically-large cavity with internal excitation (horn antenna), a variable internal

Comparison of Planar versus Spherical Emission Meausrements for Unintentional Emitters

August 19, 2002

Author(s)

Perry F. Wilson, Marco Candidi, Christopher L. Holloway

The emission patterns from electrically large objects are complex and require time consuming spherical scans to determine the emissions maximum. A planar cut

Real-Time Studies of Strains at Ferroelectric Domain Walls under an Applied Field

August 17, 2002

Author(s)

Terrence J. Jach, S. Kim, S M. Durbin, J. A. Aust, David S. Bright

We report on an improved method of visualizing domains in congruent ferroelectric crystals such as LiNbO^d3 with Bragg x-ray topography. Using monochromatic

Developing Frequency-Domain Models for Nonlinear Circuits Based on Large-Signal Measurements

August 17, 2002

Author(s)

Jeffrey Jargon, Kuldip Gupta, Dominique Schreurs, Donald C. DeGroot

Phantom Materials for Metal Detector Research

August 17, 2002

Author(s)

James R. Baker-Jarvis, Raian K. Kaiser, Michael D. Janezic

The purpose of this paper is to discuss the characterization of materials that mimic the electromagnetic characteristics of the human body from low frequencies

Remote, Near-Field Measurement of Large Antennas

August 17, 2002

Author(s)

Ronald C. Wittmann, Michael H. Francis

It is difficult to characterize many antenna systems in a laboratory environment. Size is the major consideration, but an increasing number of sophisticated

Nondestructive Permittivity and Loss Tangent Measurements Using a Split-Cylinder Resonator

August 17, 2002

Author(s)

Michael D. Janezic, Edward Kuester, James R. Baker-Jarvis

In this paper we present a new theoretical model, based on the mode-matching method, for making nondestructive permittivity and loss tangent measurements using

New Techniques for Calibrating Across-the-Road Traffic Radars

August 17, 2002

Author(s)

Claude Weil, Dennis G. Camell, David R. Novotny, Robert T. Johnk, Arthur Ondrejka

We discuss simulator units for calibrating across-the-road Doppler traffic radars used in highway speed enforcement. Two units of essentially the same design

Characteristic Impedance Measurement of Planar Transmission Lines

August 17, 2002

Author(s)

Uwe Arz, Dylan Williams, Hartmut Grabinski

In this paper we investigate a simple, robust and general method to determine the characteristic impedance of planar transmission lines based on calibration

Applications of Calibration Comparison in On-wafer Measurement

August 17, 2002

Author(s)

Uwe Arz, Dylan Williams

In this paper we discuss several applications of calibration comparison in on-wafer measurement. This technique can be understood as an abstraction of the well

Reciprocity Principle and Choice of the Reflectance Model for Physically Correct Modeling of Effective Emissivity

August 17, 2002

Author(s)

A Prokhorov, Leonard Hanssen, Sergey Mekhontsev

In the last two decades considerable Progress has been made in numerical modeling of isothermal and non-isothermal cavities by the Monte Carlo method, in

Metrics and Performance Measures for Intelligent Unmanned Ground Vehicles

August 15, 2002

Author(s)

James S. Albus

Metrics and measures for physical phenomena are precisely defined and widely accepted. However, metrics and measures for intelligent systems are as yet vaguely

Evaluating the Performance of a Vehicle Pose Measurement System

August 15, 2002

Author(s)

Harry A. Scott, Sandor S. Szabo

A method is presented for measuring the uncertainty of a vehicle pose measurement system (e.g., GPS, inertial sensors, etc.). The method supports evaluations of

A Simulation Framework for Evaluating Mobile Robots

August 15, 2002

Author(s)

Stephen B. Balakirsky, Elena R. Messina

As robotic technologies mature, we are moving from simple systems that roam our laboratories to heterogeneous groups of systems that operate in complex non

Was this page helpful?