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Conferences

Enhanced light extraction from circular Bragg grating coupled microcavities

May 26, 2006

Author(s)

Mark Su, Richard Mirin

A 7-fold enhancement of light extraction from a vertical-cavity light-emitting diode structure over a 130 nm bandwidth at room temperature was achieved using

Fast lifetime measurements of infrared emitters with low-jitter superconducting single photon detectors

May 26, 2006

Author(s)

Martin Stevens, Robert Hadfield, Robert E. Schwall, James A. Gupta, Sae Woo Nam, Richard Mirin

We use a superconducting single photon detector with 65 ps jitter and

Fiber-laser frequency comb: An explanation for the offset frequency linewidth

May 25, 2006

Author(s)

John Mcferran, William C. Swann, Nathan R. Newbury

Fiber laser-based frequency combs typically exhibit broad optical linewidths in the wings of the frequency comb. We find these broadened linewidths originate

Active Polarization Auto-Compensation in Fiber-Based Quantum-Key Distribution Systems

May 22, 2006

Author(s)

Lijun Ma, Hai Xu, Xiao Tang

We developed an active polarization auto-compensation sub-system for fiber-based polarization-encoding QKD system. This sub-system helps to stabilize the system

Influence of Avalanche-Photodiode Dead Time on the Security of High-Speed Quantum-Key Distribution Systems

May 22, 2006

Author(s)

Hai Xu, Lijun Ma, Joshua Bienfang, Xiao Tang

We study the correlation in the sifted key induced by the dead time of Geirger-mode avalanche-photodiodes (APDs) in quantum key distribution systems. A

Raman Suppression in a Microstructure Fiber With Dual Laser Pumps

May 21, 2006

Author(s)

Jingyun Fan, Alan L. Migdall

Coupling two frequency-conjugate laser pulses into an optical fiber, we observe at the middle frequency either enhanced photon generation via four-wave mixing

Optical and microwave frequency synthesis with an integrated fiber frequency comb

May 21, 2006

Author(s)

L Hartl, Martin E. Fermann, W Swann, John J. McFerran, Ian R. Coddington, Qudsia Quraishi, Scott A. Diddams, Nathan R. Newbury, Carston Langrock, M M. Fejer, P. S. Westbrook, Jeffrey W. Nicholson, K Feder

We demonstrate optical coherence over a broad spectral range of two independent fiber frequency combs. Additionally, we demonstrate microwave stability of

Temperature-dependent Saturation Fluence in InGaAs Quantum Dots Based on Direct Absorption Measurements

May 21, 2006

Author(s)

K. E. Choc, N. A. Brilliant, Steven T. Cundiff, Kevin L. Silverman, Richard Mirin

Direct measurement of the absorption of an ensemble of InGaAs quantum dots using a heterodyne multibounce technique reveals that the saturation fluence

Frequency-Resolved Coherent LIDAR using a Femtosecond Fiber Laser

May 21, 2006

Author(s)

William C. Swann, Nathan R. Newbury

We present a frequency comb-based, frequency-resolved coherent LIDAR (FReCL) that provides higher performance than that of conventional pulsed range/Doppler

Recent Advances in Solid-State Single Photon Detectors

May 21, 2006

Author(s)

Danna Rosenberg, Sae Woo Nam, Richard Mirin, Philip A. Hiskett, Jane E. Nordholt

This paper reviews recent advances in the detection of single photons at visible and near-infrared wavelengths, focusing on detectors based on superconducting

Evaluation of Color Difference Formulae for Color Rendering Metrics

May 20, 2006

Author(s)

Wendy L. Davis, Yoshihiro Ohno

Solid-state lighting is providing strong incentive to develop a new color rendering or color quality metric for sources of general illumination. Differences in

Automated Extraction of Wind Data From ASOS (Automated Surface Observing System) Weather Reports

May 18, 2006

Author(s)

Franklin T. Lombardo, Joseph A. Main

Wind loads for use in structural design are based in part on extreme value analysis of historical wind speed data for the location of interest. In some cases

Achieving Satellite Instrument Calibration for Climate Change (ASIC3)

May 18, 2006

Author(s)

Gerald T. Fraser, Raju V. Datla

The Workshop on Achieving Satellite Instrument Calibration for Climate Change (ASIC3) was a follow-up to a 2002 Workshop (Ohring et al., 2004; Ohring et al

Development of the NIST Detector-based Color Temperature Scale

May 17, 2006

Author(s)

George P. Eppeldauer, Yoshihiro Ohno

Based on the spectral responsivity of the channels of a tristimulus colorimeter, a color temperature scale is being developed at NIST. The low uncertainty of

Analysis of Vapor Density Effects on Hold Times for Total Flooding Clean Extinguishing Agents

May 16, 2006

Author(s)

Frederick W. Mowrer

Fluid Dispensing and Dispersion

May 16, 2006

Author(s)

Jiann C. Yang, David R. Keyser

This paper is a condensed version of a chapter in the forthcoming Next Generation Program (NGP) final report edited by the authors. It summarizes the research

NGP Research on Fire Suppression Chemistry.

May 16, 2006

Author(s)

Gregory T. Linteris

Screening Tests for Alternative Suppressants for In-Flight Aircraft Fires.

May 16, 2006

Author(s)

Richard G. Gann

Cup Burner Flame Extinguishment by Brominated Compounds.

May 16, 2006

Author(s)

Gregory T. Linteris, F Takahashi, Vishwanath R. Katta

Whence the NGP?

May 16, 2006

Author(s)

Richard G. Gann

NGP Advances in Powder Panel and Propellant Technologies.

May 16, 2006

Author(s)

William L. Grosshandler, D C. Cyphers, G F. Holland

Challenges in Integrating Halon-Alternate Agents into Automatic Fire Extinguishing Systems (AFES).

May 16, 2006

Author(s)

S E. Hodges

CFD Modeling Options for Total Flooding Behavior of Ultra Fine Water Mist.

May 16, 2006

Author(s)

K C. Adiga, R F. Hatcher, R S. Sheinson, F W. Williams, S Ayers

Anionic Effects in Hot Surface Catalyzed Combustions.

May 16, 2006

Author(s)

W W. Bannister, F Lai, W Paramasawat, W Sriseubsai, A Donatelli, J Li, F Bonner, N Schott, P Kurup, J Egan, E.G E. Jahngen, P Muanchareon, N Euaphantasate, S K. Chiang, S Sengupta, C S. Kuo, R Nagarajan, J Chaospukhum, A Meesrisom, V Kongkadee, V Babrauskas

Further Studies of Cup-Burner Flame Extinguishment.

May 16, 2006

Author(s)

F Takahashi, Gregory T. Linteris, Vishwanath R. Katta

The structure and extinguishment of heptane-air co-flow diffusion flames formed on a cup burner in normal earth gravity have been studied experimentally and

Comparisons by PTB, NIST, and LNE-LADG in Air and Natural Gas With Critical Venturi Nozzles Agree Within 0.05 %

May 16, 2006

Author(s)

B Mickan, Roland H. Kraemer, D Dopheide, Hans-Jurgen Hotze, Heino-Michael Hinze, Aaron Johnson, John D. Wright, J-P Vallet

The PTB, NIST, and LNE-LADG conducted a comparison of gas flow measurement standards in air and natural gas in the pressure range from 0.9 to 42 bar. The

Diverter Uncertainty Less Than 0.01 percent for Water Flow Calibrations

May 16, 2006

Author(s)

Iryna V. Marfenko, Tsyh Tyan Yeh, John D. Wright

Measurement uncertainties introduced by liquid flow diverters are often one of the major contributors to the total uncertainty of static gravimetric liquid flow

Instrumentation for Bench- and Large-Scale Test Fixtures.

May 16, 2006

Author(s)

K L. Mcnesby, Erik L. Johnsson

TDR Permittivity Measurements of Dielectric Films

May 15, 2006

Author(s)

Jan Obrzut, R Nozaki

We have developed a time-domain reflectometry (TDR) technique to measure the dielectric permittivity of film specimens. The test specimen consists of a planar

A Two-Dimensional Terahertz Imaging System Using Hot Electron Bolometer

May 10, 2006

Author(s)

Dazhen Gu, Eyal Gerecht, Fernando Rodriquez Morales, Sigfrid Yngvesson

We present first results with a two-dimensional(2D)scanning, terahertz passive heterodyne imaging system currently under development. The imager is based on a