NIST Technicalendar May 26 to May 30, 2008 The NIST Technicalendar is issued each Friday. All items MUST be submitted electronically from this web page by 12:00 NOON each Wednesday unless otherwise stated in the NIST Technicalendar. The address for online weekly editions of the NIST Technicalendar and NIST Administrative Calendar is: http://www.nist.gov/tcal/.

In this Issue: Meetings at NIST Meetings Elsewhere Announcements Talks by NIST Personnel NIST Web Site Announcements NIST Administrative Calendar (current)   NIST Vacancy Announcements (current)

Also available: Previous Issues of the Technicalendar Quick Technicalendar (current) Last week's Quick Technicalendar Last week's Technicalendar Detailed Search NIST Journal of Research (Current TOC) Change User Options

No Scheduled Events

No Scheduled Events

10:45 AM - Three Dimensional X-ray Diffraction Microscopy

No Scheduled Events

10:45 AM - Towards Routine Refinement of Hydrogenous Materials by Neutron Powder Diffraction
2:00 PM - A One-Dimensional Stochastic Model of Multi-Scale Dynamics in Turbulent Flow

5/26 -- MONDAY

No Scheduled Events

5/27 -- TUESDAY

No Scheduled Events

5/28 -- WEDNESDAY

10:45 AM - NIST CENTER FOR NEUTRON RESEARCH SEMINAR: Three Dimensional X-ray Diffraction Microscopy
The three dimensional x-ray diffraction (3DXRD) microscope is a unique instrument which combines the use of high energy x-rays generated at a synchrotron source with a "tomogrpahic" approach to acquisition of diffraction data, enabling a fast 3D structural characterization with mm-cm sized samples. The position, volume, orientation, grain boundary morphology, elastic and plastic strain can be derived for hundreds of grains simultaneously. The spatial resolution is on the order of 5 microns, while diffracting units of sizes down to 25 nm can be observed. 3DXRD microscopy for the first time enables dynamic studies of the individual grains and sub-grains in polycrystals. Hence, it is possible to observe how the structural elements nucleate, grow, deform or transform and in general how they interact with their local environment. The methodology will be presented and the potential applications illustrated by examples ranging from in-situ deformation and recrystallization to phase transformations.
Marry Margulies , Risoe National Laboratory,. ,.
235 Bldg, Rm. E100. (NIST Contact: Thomas Gnaupel-Herold, 301-975-5380, thomas.gnaeupel-herold@nist.gov)


5/29 -- THURSDAY

No Scheduled Events

5/30 -- FRIDAY

10:45 AM - NIST CENTER FOR NEUTRON RESEARCH SEMINAR: Towards Routine Refinement of Hydrogenous Materials by Neutron Powder Diffraction
Traditionally, the collection of powder neutron data from hydrogenous materials has been considered largely fruitless due to the large, wavelength variable incoherent scattering contribution from hydrogen. This, coupled with relatively low neutron fluxes, has led to disproportionately long counting times for the quality of data collected. Practically, deuteration is often assumed to be a prerequisite for a powder neutron experiment. However, in many cases, deuteration profoundly changes the properties of the material under investigation, leads to the observation of completely different structures and/or phase behaviour or is impossible or incomplete making structural work impossible due to the negative / positive scattering lengths of H / D respectively. Materials of technological interest in the fuel cell, hydrogen storage, mineral and fast ion-conduction areas are currently hot topics in solid-state materials research. In these materials, the position of the hydrogen and its interaction with the host lattice are of utmost importance to understand the observed physical properties. As the majority of the host materials contain heavy atoms, locating the hydrogen positions and following their evolution using X-ray diffraction techniques, even using the high fluxes of a synchrotron source, is impossible. With the advent of very-high flux, variable resolution powder neutron diffractometers such as D20 at ILL, GEM and the upgraded HRPD and POLARIS diffractometers at ISIS, WOMBAT at Opal and POWGEN at SNS as well as planned new instruments worldwide, the feasibility of studying hydrogenous materials with powder neutron diffraction needs to be revisited. The power of the currently available instruments will be illustrated using a range of example materials from my ongoing collaborative research and instrumental development programme at ILL.
Paul Henry , Institut Laue-Langevin,. ,.
235 Bldg, Rm. E100. (NIST Contact: Mark Green, 301-975-4297, mark.green@nist.gov)

2:00 PM - FIRE RESEARCH DIVISION SEMINAR: A One-Dimensional Stochastic Model of Multi-Scale Dynamics in Turbulent Flow
One computational strategy for capturing micro-scale processes not affordably resolved in multi-dimensional turbulence simulations is to represent these processes by a lower-dimensional formulation. An approach formulated in one spatial dimension, denoted One-Dimensional Turbulence (ODT), is outlined. ODT combines two 1D approaches that have individually proven successful: stochastic iterated maps and dimensional reduction of the governing equations using the boundary-layer approximation. Within ODT, sub-processes based on these two approaches are coupled so as to represent both turbulent cascade dynamics and micro-physics at dissipative scales, with strong two-way interaction. Model performance is illustrated by applications to representative shear-driven and buoyancy-driven turbulent flows, with emphasis on micro-scale couplings. A recent application to soot-radiation-turbulence coupling in fires is highlighted. Progress on implementation of ODT as a sub-grid closure for 3D flow simulation is described.
Alan Kerstein , Combustion Research Facility - Sandia National Laboratories, Livermore, CA.
Bldg 224, Rm B245. (NIST Contact: Rodney Bryant, 301-975-6487, rbryant@nist.gov)


ADVANCE NOTICE

6/2/08 1:30 PM - CNST NANOFABRICATION RESEARCH GROUP SEMINAR: PRINCIPLES, TECHNOLOGY AND APPLICATIONS OF ARTIFICIAL OPTICAL MEDIA: PHOTONIC CRYSTALS AND METAMATERIALS
The ability to produce semiconductor, dielectric and metallic structures with nanometer-scale features paves the way for the development of artificial materials exhibiting novel optical properties highly desirable for a wide range of optics applications. This talk will report on investigations of two classes of periodic artificial materials: photonic crystals and metamaterials. Photonic crystals are characterized by a strong spatial refractive index modulation with periods on the order of the wavelength. Wave propagation is dictated by periodicity and index modulation, and formation of photonic bandgaps is observed, in strong analogy with electronic crystals. Applications in monolithic, InP-based photonic integrated circuits for optical communications (?~1.55?m) will be reported and discussed, with focus on stop-band formation and slow and dispersive waveguide propagation. Metamaterials are periodic media that may be described by homogeneous effective optical constants at wavelengths considerably larger than the unit-cell. The search for metamaterials exhibiting a negative refractive index at optical wavelengths has generated an intense research effort fueled by exciting prospects for arbitrarily controlling the flow of light. The fabrication and characterization of a metamaterial based on metallic inclusions in a dielectric host will be reported, that may provide negative refraction at near-infrared wavelengths (~1.0?m), matching results so far observed only at microwave frequencies.
Marcelo Davanco , Postdoctoral Research Fellow University of Michigan.
Bldg.217, Room H107. (NIST Contact: Kartik Srinivasan, 301-975-5938, kartik.srinivasan@nist.gov)

6/3/08 9:00 AM - COMPUTER SECURITY DIVISION SEMINAR: Applications of Pairing-Based Cryptography: Identity-Based Encryption and Beyond
This workshop brings together academia, government and industry to explore innovative and practical applications of pairing-based cryptography. Pairings have been used to create identity-based encryption schemes, but are also a useful tool for solving other cryptographic problems. We hope to encourage the development of new security applications and communication between researchers, developers and users.
Keynote I: Matt Franklin, University of California, Davis , "An Introduction to Identity Based Encryption". Keynote II: Brent Waters, SRI , "Functional Encryption: Beyond Public Key Cryptography". A complete program of all presentations and panels can be found at the workshop website.
Administration Bldg, Green Auditorium. (NIST Contact: Sara Caswell, 301-975-4634, sara@nist.gov) http://www.nist.gov/ibe/

6/3/08 1:30 PM - CNST NANOFABRICATION RESEARCH GROUP SEMINAR: Terahertz Optoelectronics: New Devices, Techniques, and Applications
The terahertz (THz) spectral range has traditionally been referred to as the gap in the electromagnetic spectrum. While there has been recent success in developing sources and detectors, there has been little work in the developing device technologies. The use of plasmonics, which refers to surface excitations at metal-dielectric interfaces, is aggressively being pursued to develop the requisite capabilities. This approach offers several attractive features such as the possibility for a simplified device topology, subwavelength field localization, and low-loss transmission of THz radiation. I will describe my work in understanding the properties of surface plasmons at THz frequencies and its relevance to developing unique and useful THz optoelectronic devices.
Amit Agrawal , University of Utah, Salt Lake City, UT,.
Bldg. 217, Rm. H107. (NIST Contact: Henri Lezec, 301-975-8612, henri.lezec@nist.gov)

6/5/08 10:30 AM - CNST NANOFABRICATION RESEARCH GROUP SEMINAR: The Physics of Surface Waves at the Metal-Dielectric Interface Interacting with Structures of Subwavelength Scale
The localization, enhanced transport, and transmission of light along and through subwavelength structures holds promise for chip-scale photonic circuit integration, biological sensors, and dense optical storage media. The basic physics of this transport and transmission has been, however, imperfectly understood and attempts to rationalize early experimental results from the perspectives of crystal periodicity, classical physical optics, diffraction, and classical electrodynamics have led to diverse and often conflicting interpretations and predictions. We present here a series of studies seeking to explain the fundamental physics of a single propagating mode interacting with a single subwavelength structure and how this physics relates to transport and transmission through periodic arrays of such structures.
John Weiner , Professor.
Bldg. 217, Rm. H107. (NIST Contact: Henri Lezec, 301-975-8612, henri.lezec@nist.gov)

6/6/08 10:30 AM - NIST COLLOQUIUM SERIES: Observing Climate with Satellites: Are We on Thin Ice?
(Rescheduled from April 11, 2008) The Earth's climate is determined by irradiance from the Sun and by properties of the atmosphere, oceans, and land that determine the reflection, absorption, and emission of energy within our atmosphere and at the Earth's surface. Since the 1970s, Earth-viewing satellites have complemented non-satellite geophysical information and led to an unprecedented understanding of the Earth's coupled ocean-land-atmosphere system. I will describe the Earth's climate system, as understood from data from earth-viewing satellites and ground-based geophysical monitoring stations, review arguments against global warming, and show the unprecedented convergence of evidence for global warming in the past few years. I will also discuss recent concerns about warming-induced instabilities to the ice sheets of Greenland and Antarctica
Compton Tucker , Goddard Fellow, NASA Goddard Space Flight Center.
Administration Building, Green Auditorium. (NIST Contact: Kum Ham, 301-975-4203, kham@nist.gov)
Special Assistance Available

6/11/08 10:30 AM - CNST NANOTECHNOLOGY SEMINAR SERIES: GATED CARBON ELECTRONICS
We discuss techniques for making gated nanoelectronics based on carbon nanotubes and graphene, and some of the new physics and possible applications that is available in these systems. Here we will focus on few-electron quantum dots in nanotubes -- possibly for application to quantum information -- and p-n junctions in graphene.
Prof. Charles Marcus , Harvard University,.
Bldg. 215, Rm. C103-C106. (NIST Contact: Nikolai Zhitenev, 301-975-6039, nikolai.zhitenev@nist.gov)

6/16/08 11:00 AM - CSTL AND PL SEMINAR: Achievements and Future Challenges for Monitoring Climate Change
The latest report from the International Panel on Climate Change identifies the major sources of radiative forcing in the atmosphere and their principal sources of uncertainty. Several national measurement institutes (NMIs) from around the world are working with internationally-recognized atmospheric monitoring laboratories to provide measurement results that are stable, comparable and coherent. The need and critical role of internationally-recognized measurement standards will be discussed. The global debate also involves strategies for mitigation of climate change effects. Needs for measurements and standards for assessing and underpinning these include: • support for "carbon" trading schemes, • global monitoring of trace species (eg volatile organic compounds), • very high accuracy measurements of oxygen required to determine the role of biomass in the global carbon budget, and • quantifying the radiative properties of aerosols. The talk will emphasize how the International Committee for Weights and Measures (CIPM) Mutual Recognition Arrangement (MRA) provides an open, transparent, and comprehensive system for comparing the measurement capabilities that underpin services that NMIs provide to the climate change measurement community.
Martin Milton , National Physical Laboratory, U.K..
Administration Building, Green Auditorium. (NIST Contact: Willie May, 301-975-8300, wem@nist.gov)

---

MEETINGS ELSEWHERE


5/26 -- MONDAY

No Scheduled Events

5/27 -- TUESDAY

11:00 AM - CARNEGIE INSTITUTION OF WASHINGTON/GEOPHYSICAL LAB. SEMINAR: GEOBIOCHEMICAL EVOLUTION OF THE METALLOPROTEOME: PHYSIOLOGICAL PROXIES AND BIOCHEMICAL INERTIA
F. Wolfe-Simon , Harvard Univ..
Bldg, Rm..
Greenewalt Bldg., GL-DTM Grounds, Carnegie Institution of Washington, DC. (NIST Contact: R. Hemley, 202-478-8900, seminar@lists.ciw.edu)



5/28 -- WEDNESDAY

No Scheduled Events

5/29 -- THURSDAY

No Scheduled Events

5/30 -- FRIDAY

2:00 PM - 39TH ANNUAL MEETING OF THE APS DIVISION OF ATOMIC, MOLECULAR, AND OPTICAL PHYSICS
J. Vaishnav , Joint Quantum Institute, NIST, Gaithersburg, MD, vaishnav@nist.gov.
Bldg, Rm..
Nittany Lion Inn, Ballroom AB, State College PA, USA. (NIST Contact: J. Y. Vaishnav, 301-975-5297, vaishnav@nist.gov) http://meetings.aps.org/Meeting/DAMOP08



ADVANCE NOTICE

5/31/08 9:00 AM - COLLISIONAL COOLING OF ULTRA-COLD ATOM ENSEMBLES
Ludwig Mathey , JQI Post-doc, Gaithersburg, MD, lmathey@nist.gov.
Bldg, Rm..
Nittany Lion Inn - Ballroom AB State College, Pennsylvania, USA. (NIST Contact: Ludwig Mathey, 301-975-8351, lmathey@nist.gov)

---

TALKS BY NIST PERSONNEL

ROGERS, D. : FOUR-WAVE MIXING IN A BIREFRINGENT SEMICONDUCTOR WAVEGUIDE FOR CORRELATED PHOTON GENERATION.
39th Annual Meeting of the APS Division of Atomic, Molecular, and Optical Physics, Nittany Lion Inn, Pennsylvania State University, State College, PA, 5/27.

CLARK, C. : NEW APPROACHES TO STANDARDIZATION OF CT IMAGE EVALUATION.
Quantitative Imaging Biomarkers Alliance Meeting, Oak Brook Hills Marriott Resort, Oak Brook, IL, 5/22.

HACKER, C. (Co-Authors: C.Richter , NIST, Gaithersburg, MD, curt.richter@nist.gov L.Richter , NIST, Gaithersburg, MD, lee.richter@nist.gov) ; Bau, M.C., NIST : METAL-MOLECULE INTERFACE REACTIONS FOR SILICON-BASED MOLECULAR ELECTRONIC DEVICES.
EMRS 2008 Spring Meeting, Strasbourg, France, 5/26.

ROGERS, D. : FOUR-WAVE MIXING IN A BIREFRINGENT SEMICONDUCTOR WAVEGUIDE FOR CORRELATED PHOTON GENERATION.
APS Division of AMO Physics, State College, PA, 5/27.

RO, H. : POLYHEDRAL OLIGOMERIC SILSEQUIOXANE (POSS) FUNCTIONAL PATTERNS DIRECTLY FABRICATED BY NANOIMPRINT LITHOGRAPHY.
EIPBN Conference, Portland, OR, 5/27.

DRAGANIC, I. : SPECTRA OF HIGHLY IONIZED HF, TA, W, AND AU OBSERVED WITH AN EBIT LIGHT SOURCE.
Division of Atomic, Molecular, and Optical Physics (DAMOP), State College, Pa USA, 5/27.

KRAMIDA, A. : ATOMIC SPECTRA BIBLIOGRAPHY DATABASES AT NIST.
Division of Atomic, Molecular, and Optical Physics (DAMOP), State College, PA USA, 5/27.

FISCHER, C. (Co-Author: O.Zatsarinny , Department of Physics and Astronomy, Drake University, Des Moines, IA) : B-SPLINE GALERKIN METHODS FOR THE DIRAC EQUATION.
Division of Atomic, Molecular, and Optical Physics (DAMOP), State College, Pennsylvania USA, 5/27.

FISCHER, C. (Co-Authors: O.Zatsarinny , Drake University, Des Moines, IA K.Bartschat , Drake University, Des Moines, IA) : FULL-RELATIVISTIC B-SPLINE R-MATRIX CALCULATIONS FOR ELECTRON COLLISIONS WITH GOLD ATOMS..
Division of Atomic, Molecular, and Optical Physics (DAMOP), State College, PA USA, 5/27.

RO, H. : CONTINUOUS PATTERNS WITH HEIGHT GRADIENTS BY NANOIMPRINT LITHOGRAPHY AND THERMAL GRADIENT ANNEALING.
EIPBN Conference, Portland, OR, 5/28.

HIGHT WALKER, A. : TECHNICAL SPECIFICATION FOR THE USE OF RAMAN SPECTROSCOPY IN THE CHARACTERIZATION OF SINGLE-WALL CARBON NANOTUBES.
International Standards Organization (ISO) Nanotechnology Meeting, Bordeaux, France, 5/28.

CICERONE, M. : LABEL-FREE IMAGING OF COMPLEX BIOLOGICAL SAMPLES BY BROADBAND CARS MICROSCOPY.
1st European Conference on CARS Microscopy (microCARS 2008), Igls (near Innsbruck), Austria, 5/29.

CLARK, C. (Co-Authors: A.Thompson , NIST M.Coplan , University of Maryland) , Patrick Hughes and John W. Cooper, University of Maryland; Robert E. Vest, NIST : ATTOSECOND DISSOCIATION OF THE HT MOLECULE FROM THE HE UNITED-ATOM LIMIT.
Annual Meeting of the Division of Atomic, Molecular and Optical Physics, American Physical Society, State College, PA, 5/29.

SMITH, W. : HIGH-SPEED VIDEOGRAPHY OF MICROPARTICLE SUSPENSION FOR AEROSOL RESEARCH AND MATERIALS CHARACTERIZATION.
PA State University Mechanical and Nuclear Engineer Colloquim, Pennsylvania State College, 5/29.

PRABHU, V. : ADVANCES IN NEUTRON RESEARCH METHODS FOR PHOTORESISTS FUNDAMENTALS.
EIPBN Meeting, Portland, OR, 5/30.

GALLANT, N. : (CONTRIBUTED): "BIOACTIVE SURFACE GRADIENTS FOR COMBINATORIAL STUDIES OF CELL ADHESION".
World Biomaterials Congress, RAI Congress Centre, Europaplein, 1078 GZ Amsterdam, The Netherlands, 5/31.

BECKER, M. : CONTRIBUTED: "HIGHLY SPECIFIC HYDROXYAPATITE PEPTIDE IDENTIFIED VIA PHAGE DISPLAY".
World Biomaterials Congress, RAI Congress Centre, Europaplein, 1078 GZ Amsterdam, The Netherlands, 6/1.

---

ANNOUNCEMENTS

RADIATION THERMOMETRY SHORT COURSE
Sponsored by the Optical Technology Division at NIST and Space Dynamics Laboratory at Utah State University, the Radiation Thermometry Short Course is designed for scientists, engineers, and technicians who need to make reliable temperature measurements using radiation thermometers. The course will consist of lectures and skill-building, problem-solving laboratory experiments and will cover the fundamentals of radiometric physics and instrumentation associated with determining temperature from observations of thermal radiation from materials. The exercises will provide experience in performing radiometric analyses to internalize key concepts and to serve as preparatory work for the experiments.
NIST Contact: Benjamin Tsai, 301-975-2347, tsai@nist.gov

VISITOR REGISTRATION FOR NIST EVENTS
Because of heightened security at the NIST Gaithersburg site, members of the public who wish to attend meetings, seminars, lectures, etc. must first register in advance. For more information please call or e-mail the "NIST Contact" for the particular event you would like to attend.
NIST Contact: . ., ., .

2008 WORLD STANDARDS DAY PAPER COMPETITION
The U.S. standards community will celebrate World Standards Day on Thursday, October 23, 2008, at the Ronald Reagan Building and International Trade Center in Washington, DC. The theme for this year's celebration, "Intelligent and Sustainable Buildings," recognizes the critical role of standards and conformity assessment programs in ensuring safety requirements; facilitating coordination among contractors, builders, engineers, and architects; and incorporating new technologies in design and construction. In conjunction with this year's event, the 2008 World Standards Day sponsors, including NIST will hold the annual paper competition. The 2008 World Standards Day Paper Competition invites papers that use specific examples to show ways that standards and conformity assessment programs are used for intelligent and sustainable buildings. Paper competition winners will be announced and given their awards at the US celebration of World Standards Day. The first place winner will receive a plaque and $2,500. Second and third place winners will receive $1,000 and $500, respectively, along with a certificate. In addition, the winning papers will be published in SES's journal, "Standards Engineering." ELIGIBILITY: The competition is open to U.S.-based individuals in the private sector, government, or academia. Papers may be co-authored. RULES: Entries must be original and not previously published. NIST papers must be processed through WERB or BERB. All paper contest submissions must be received with an official entry form by midnight on August 29, 2008, by the SES Executive Director, 13340 SW 96th Avenue, Miami, Florida, 33176. Complete details and official entry forms are available on the SES website www.ses-standards.org (follow the link for "2008 WSD Paper Competition.") For additional information about the U.S. Celebration of World Standards Day, or to register for the event, please visit www.wsd-us.org.
NIST Contact: Mary Donaldson, 301-975-6197, mary.donaldson@nist.gov

---

NIST WEB SITE ANNOUNCEMENTS

No Web Site announcements this week.

---

For more information, contact Ms. Sharon Hallman, Editor, Stop 2500, National Institute of Standards and Technology, Gaithersburg MD 20899-2500; Telephone: 301-975-TCAL (3570); Fax: 301-926-4431; or Email: tcal@nist.gov.

All lectures and meetings are open unless otherwise stated.

---

NVL Webmaster