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Conferences

Long distance optical frequency transfer over fiber: predicting the frequency stability from the fiber noise

May 19, 2008

Author(s)

Nathan R. Newbury, Paul A. Williams, William C. Swann

We have recently demonstrated the coherent transfer of an optical signal over a 251 km link of optical fiber using the standard Doppler-cancellation approach to...

The Role of Folding in the Degradation of Ballistic Fibers

May 19, 2008

Author(s)

Walter G. McDonough, Gale A. Holmes, Jae Hyun Kim, Derek L. Ho

Research has indicated that the folding of ballistic fibers comprising soft body armor may be a factor in the performance deterioration that has been observed...

A Line-Based Obstacle Avoidance Technique for Dexterous Manipulator Operations

May 19, 2008

Author(s)

Nicholas A. Scott, Craig R. Carignan

Cameras are often used for visual servoing or realtime mapping of the external environment in both autonomous and teleoperated tasks with a dexterous...

Dark Resonance in Bichromatic Linearly Polarized Optical Field on Cs D₁ Line

May 19, 2008

Author(s)

Ken-ichi Watabe, Takeshi Ikegami, Akifumi Takamizawa, Shinya Yanagimachi, Shin-ichi Ohshima, Svenja A. Knappe

We describe a simple method for observing high-contrast coherent population trapping signals on the Cs D 1 line. The high-contrast signals were achieved by use...

ECS Transactions

May 18, 2008

Author(s)

Yaw S. Obeng, Stephen Knight, Joaquin (. Martinez

Nanoelectronics require the introduction of several new uncharacterized material(s) combinations and new processing techniques. The critical metrology and...

Long distance optical frequency transfer over fiber: predicting the frequency stability from the fiber noise

May 18, 2008

Author(s)

Nathan R. Newbury, Paul A. Williams, William C. Swann

We have recently demonstrated the coherent transfer of an optical signal over a 251 km link of optical fiber by use of the standard Doppler-cancellation...

Progress in the Development and Performance of a High Frequency 4 K Stirling-Type Pulse Tube Cryocooler

May 17, 2008

Author(s)

Peter E. Bradley, Ray Radebaugh, Isaac Garaway

Presently we are in the development process for a 4 K Stirling-type pulse tube cryocooler to support cooling requirements for a mobile THz detector system. In...

Aminoxyl (nitroxyl)Radicals in the Decomposition of RDX

May 13, 2008

Author(s)

Karl K. Irikura

The explosive RDX (1,3,5-trinitrohexahydro-s-triazine) is thought to decompose by homolytic N-N bond cleavage, among other possible initiation reactions...

Relating Taxonomies with Regulations

May 13, 2008

Author(s)

Chin P. Cheng, Jiayi Pan, Gloria T. Lau, Kincho H. Law, Albert T. Jones

Increasingly, taxonomies are being developed for a wide variety of industrial domains and specific applications within those domains. These taxonomies attempt...

Sensor Network based on IEEE 1451.0 and IEEE p1451.2-RS232

May 12, 2008

Author(s)

Yuyin Song, Kang B. Lee

The Institute of Electrical and Electronics Engineers (IEEE) 1451 family of standards defines a set of common communication interfaces for connecting smart...

Impact of Signaling Load on the UMTS Call Blocking/Dropping

May 11, 2008

Author(s)

Yi Qian, David Tipper, Saowaphak Sasanus

Radio resources in the third generation (3G) wireless cellular networks (WCNs) such as the universal mobile telecommunications system (UMTS) network is limited...

Design Secure and Application-Oriented VANET

May 11, 2008

Author(s)

Yi Qian, Nader Moayeri

Vehicular ad hoc network (VANET) is recognized as an important component of Intelligent Transportation Systems. The main benefit of VANET communication is seen...

Characterization of Mechanical Properties of Epoxy Nanocomposites Using Functionalized Clays and Layered Double Hydroxides

May 8, 2008

Author(s)

Jae Hyun Kim, Mickey Richardson, Gale A. Holmes

THE ROLE OF CAMERA NETWORKS IN CONSTRUCTION AUTOMATION

May 7, 2008

Author(s)

Itai Katz, Kamel S. Saidi, Alan M. Lytle

Due to the complexity and variability of capital construction sites, real-time monitoring remains an elusive goal. As unit price continues to fall, camera...

Introducing Sustainability Early into Manufacturing Process Planning

May 7, 2008

Author(s)

Mahesh Mani, Kevin W. Lyons, Sudarsan Rachuri, Eswaran Subrahmanian, Ram D. Sriram

In response to the global trend towards implementing sustainable manufacturing practices, we put forth an exploratory approach that uses energy monitoring as a...

The Surprising Affects of Strain on the Long Term Rheology of Filled Viscoelastic Solids (Building Joint Sealant)

May 7, 2008

Author(s)

Donald L. Hunston, Kar T. Tan, Christopher C. White

Filled viscoelastic solids, have been used for the last 40 years as building sealants to separate indoor from outdoor environments. The most important property...

Experimental Implementation of 1310 nm Differential Phase Shift QKD System with Up-conversion Detectors

May 6, 2008

Author(s)

Lijun Ma, Hai Xu, Tiejun Chang, Oliver T. Slattery, Xiao Tang

We have experimentally implemented a differential phase shift quantum-key distribution system with up-conversion detectors operating at 2.5 Gbps clock rate. A...

Detection-time-bin-shift Polarization Encoding Quantum Key Distribution System

May 6, 2008

Author(s)

Lijun Ma, Tiejun Chang, Xiao Tang

A detection-time-bin-shift scheme for polarization encoding QKD is proposed. This scheme can reduce cost and overcome the security loss caused by dead-time and...

EVALUATION OF MULTI-SAMPLE MICRO-CAPILLARY RHEOMETER

May 5, 2008

Author(s)

Doyoung Moon, Anthony J. Bur, Kalman D. Migler

We present a Multi-sample Micro-capillary Rheometer (MMR) which is capable of measurements over a broad range of temperatures, viscosities and shear rates. The...

Improving squeezing purity from a KNbO³ crystal by temperature tuning

May 4, 2008

Author(s)

Thomas Gerrits, Tracy S. Clement, Scott Glancy, Richard P. Mirin, Sae Woo Nam, Emanuel Knill

We show a method to increase the purity of a squeezed state generated by a femtosecond laser and down-conversion crystal. The method relies on temperature...

Practical performance limits on optical frequency transfer over fiber optic links

May 4, 2008

Author(s)

Paul A. Williams, William C. Swann, Nathan R. Newbury

We present theory and experiment quantifying the limitations to stable transport of optical frequencies over optical fiber. These are fundamental fiber noise...

Broadband, frequency comb spectroscopy

May 4, 2008

Author(s)

Ian R. Coddington, William C. Swann, Nathan R. Newbury

A stabilized frequency comb provides a broadband array of highly resolved comb lines. Using a multiheterodyne technique, we measure the amplitude and phase of...

Reducing the oscillator strength in semiconductor quantum dots with a lateral electric field

May 4, 2008

Author(s)

Amelia Bloom, Richard Mirin, Kevin L. Silverman

We modulate the oscillator strength of self-assembled quantum dots embedded in a semiconductor ridge waveguide by applying an electric field with two coplanar...

Optical Microchip Detection of Nuclear Magnetic Resonance

May 4, 2008

Author(s)

M Ledbetter, I Savukov, D Budker, Vishal Shah, Svenja A. Knappe, John Kitching, S Xu, D Michalak, A Pines

We demonstrate optical detection of nuclear magnetic resonance on a microchip. A theoretical optimization indicates detection limits that are competitive with...

Humidity Standard of Compressed Hydrogen for Fuel Cell Technology

May 2, 2008

Author(s)

Peter H. Huang

Compressed hydrogen is one of the most important utilities in fuel cell industry. For the specification of hydrogen fuel quality and for the design of...

Adjustments to the NIST Realization of the ITS-90 from 5 K to 24.5561 K

May 1, 2008

Author(s)

Weston L. Tew, Christopher W. Meyer

Recent clarifications issued by the Consultative Committee on Thermometry (CCT) for the definitions of the equilibrium hydrogen (e-H2) triple points (TPs) and...

Automated Continuous-Flow Gravimetric Hygrometer as a Primary Humidity Standard

May 1, 2008

Author(s)

Christopher W. Meyer, Joseph T. Hodges, R W. Hyland, Gregory E. Scace, J Valencia-Rodriguez, James R. Whetstone

A new primary gravimetric hygrometer has been completed at the National Institute of Standards and Technology (NIST). This apparatus determines the humidity in...

High Temperature, High Power Module Design for Wide Bandgap Semiconductors: Packaging Architecture and Materials Considerations

May 1, 2008

Author(s)

Allen R. Hefner Jr., Z. J. Shen, Ryan McClure, Ali Gordon, Brian Grummel

Wide bandgap power semiconductors such as SiC or GaN can safely operate at a junction temperature of 500°C. Such a high operating temperature range can...

Assessment of ASCE 7 Standard Wind Load Factors for Tall Building Response Estimates

May 1, 2008

Author(s)

Rene D. Gabbai, William P. Fritz, Amelia P. Wright, Emil Simiu

Wind load factors incorporated in the ASCE 7 Standard are based on rough approximations of wind effects and the uncertainties inherent in them. These factors...

Understanding the IPC 175X Data Model

May 1, 2008

Author(s)

Eric D. Simmon, John V. Messina

More and more political bodies (countries, states, and unions) are enacting legislation designed to protect the environment from the impact of manufacturing...

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