NIST Technicalendar January 8 to January 12, 2007 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/.
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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)

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No Scheduled Events

10:30 AM - Phat Photons for Nifty Nanoscience

10:30 AM - 3D Imaging in Cells: a Physicist's Gateway into Biological Research

No Scheduled Events

10:30 AM - The Capres Scanning Conductivity Microscope for Micro-scale Resistivity and Tunneling Magneto-resistance Measurements
10:30 AM - Metamaterials and Metafilms: Overview and Applications
10:30 AM - Photonic Crystals: Symmetrical and Surface Effects
10:30 AM - Imaging Magnetic Surfaces with Atomic Resolution
2:00 PM - SYNTHESIS AND STRUCTURE-FUNCTION RELATIONSHIPS OF BOLALIPIDS FOR DEVELOPMENT OF A HIGH-THROUGHPUT MEMBRANE PROTEIN BIOSENSOR

1/8 -- MONDAY

No Scheduled Events

1/9 -- TUESDAY

10:30 AM - CNST SEMINAR SERIES: Phat Photons for Nifty Nanoscience
Progress in optical lithography has paced the enormous progress in integrated circuits. Thus, the question of the ultimate capabilities of optical lithography is of great importance as we proceed into the deep sub-wavelength regime. The spatial frequency transmission bandwidth of free-space is 2/?, leading to a dense (equal line/space) pattern at a half-pitch of ?/4 (or 48 nm for a 193-nm??). Immersion provides another factor of ~ 1.44 (H2O) or greater down to a ½ pitch CD < 33 nm. Nonlinear processes, based on photore-sist chemistry and pattern transfer, allow further extension of optics beyond the single-exposure linear-systems limits, much as frequency multiplication processes allow extension of fundamental laser frequen-cies (cf. Fig. 1). The conclusion is that there is no fundamental limit to the resolution of optical lithog-raphy; there remain process latitude and manufacturing (e.g. cost) issues. For many nanotechnology applications, large numbers of nanostructures covering a large sample area with a well-defined long-range order are required. One such example is a metamaterial with a structure- (as opposed to material-) dependent resonance. Fig. 2 shows an infrared metamaterial (an assemblage of LC tank circuits). Negative-index materials (NIMs) are another emerging area. Photonic crystals –periodic arrays of nanoscale structures (with or without aperiodic defects) providing another example of the exciting physics accessible with current interferometric lithography capabilities. Nanostructuring for semiconductor materials development and nanofluidics for biological applications are other emerging re-search directions. The overall message is that a nanoscale lithography capability enables many excit-ing nanotechnology research directions.
Steven R. Brueck , Center for High Technology Materials, University of New Mexico, Albuquerque, NM, brueck@chtm.unm.edu.
215 Bldg, Rm. C103-C106. (NIST Contact: Jabez McClelland, 301-975-3721, jabez.mcclelland@nist.gov)


1/10 -- WEDNESDAY

10:30 AM - QUANTUM ELECTRICAL METROLOGY DIVISION SEMINAR: 3D Imaging in Cells: a Physicist's Gateway into Biological Research
Processes in cellular biophysics and biology occur in 3D environments at a range of time-scales from milliseconds to days. Studying such processes poses three principal challenges: speed, sensitivity, and spatial resolution in complex environments. These challenges also simultaneously provide an entrée for physicists and engineers into biological research. We describe the development of a high-speed, high-sensitivity, 3D+time confocal system with the advantages of relatively modest cost and complexity. We present results from ongoing investigations into biological processes, including biopolymer network formation, cytoskeletal dynamics, and intracellular metabolism, that benefit from this system and that have faciliated the speaker's transition from working in experimental physics to collaborative biological and biophysical research.
Ryan McAllister , Georgetown University, Washington, DC.
Metrology Building, Room B365. (NIST Contact: Neil Zimmerman, 301-975-5887, neil.zimmerman@nist.gov)


1/11 -- THURSDAY

No Scheduled Events

1/12 -- FRIDAY

10:30 AM - MAGNETICS SEMINAR SERIES: The Capres Scanning Conductivity Microscope for Micro-scale Resistivity and Tunneling Magneto-resistance Measurements
Bo Velschow , CAPRES A/S, Lyngby, Denmark.
Physics Bldg, Rm. B145. (NIST Contact: William Egelhoff, 301-975-2542, egelhoff@nist.gov)

10:30 AM - ,,,NIST CHAPTER OF SIGMA XI SEMINAR: Metamaterials and Metafilms: Overview and Applications
In recent years, there has been a great deal of attention directed towards metamaterials (i.e., engineered or man-made materials). In the context of electromagnetics, examples of these are artificial dielectrics, photonic bandgap structures, and frequency-selective surfaces. More specifically and recently there have been studies on the properties and potential applications of double negative (DNG) materials. DNG materials are a class of metamaterials, also known as negative-index materials, backward media (BW), or left-handed materials, for which the effective permittivity and effective permeability are simultaneously negative. This class of metamaterials has a wide range of potential applications in electromagnetics, optics, electronics, and fairytales: (1) shielding materials, (2) low-reflection materials, (3) substrate materials, (4) antenna applications, (5) electronic switches, (6) the so-called perfect lens, (7) resonators, and (8) cloaking objects (from Klingon ships to Harry Potter). Metamaterials are commonly engineered by arranging a set of scatterers embedded throughout a region of space in a specific pattern so as to achieve some desirable bulk behavior of the material. This concept can be extended by judiciously placing scatterers in a two-dimensional pattern at a surface or interface. This surface version of a metamaterial has been given the name metafilm. More specifically, a metafilm is a surface distribution of electrically small scatterers characterized by electric and magnetic polarizability densities. These metafilms can be used in many of the same applications as metamaterials, however, the metafilms easier to design and manufacture. In this talk, we will introduce and summarize the theory and applications of metamaterials and metafilms. We will also summarize the research of EEEL Division 818 in these new classes of materials. Dr. Holloway received the B.S. degree from the University of Tennessee at Chattanooga in 1986, and the M.S. and Ph.D. degrees from the University of Colorado at Boulder in 1988 and 1992, respectively, both in electrical engineering. Dr. Holloway has been with NIST - Boulder, since 2000 where he works on electromagnetic theory. He is also on the Graduate Faculty at the University of Colorado (Boulder). Dr. Holloway was awarded the 2006 Department of Commerce Bronze Medal for his work on radio wave propagation, the 1999 Department of Commerce Silver Medal for his work in electromagnetic theory, and the 1998 Department of Commerce Bronze Medal for his work on printed circuit boards. His research interests include electromagnetic field theory, wave propagation, guided wave structures, remote sensing, numerical methods, and EMC/EMI issues. Dr. Holloway is a member of Commission A of the International Union of Radio Science and is an Associate Editor for the IEEE Transactions on Electromagnetic Compatibility. Dr. Holloway was the chairman for the Technical Committee on Computational Electromagnetics (TC-9) of the IEEE Electromagnetic Compatibility Society from 2000-2005. He is currently serving as an IEEE Distinguished lecturer for the EMC Society. Dr. Holloway holds U.S. Patents on electromagnetic absorbing materials, radar systems and antennas for atmospheric radars. He has over 150 technical publications.
Dr. Christopher Holloway, Ph.D. , NIST Electromagnetics Division, Boulder, CO, holloway@boulder.nist.gov.
Administration Bldg, Lecture Rm. A. (NIST Contact: John Slotwinski, 301-975-2171, john.slotwinski@nist.gov)

10:30 AM - ATOMIC PHYSICS DIVISION SEMINAR: Photonic Crystals: Symmetrical and Surface Effects
In this talk I will review my recent works related to photonic crystals. First I will focus on symmetrical effects in photonic crystals. I will present the symmetrical model developed for complex layered photonic structures. I will also demonstrate how the splitting of a degenerate defect state in a photonic crystal may cause the lattice distortion resulting in the so-called electromagnetic analogue of the Jahn-Teller effect. I will show the application of this effect for designing tunable waveguide devices. I will next shift my focus to surface states, which might appear in photonic crystals due to their termination. We investigated the surface states of a defect chain embedded in a host photonic crystal. Our analytical and numerical analysis showed that the surface states of the defect chain could be classified in terms of the Tamm-like or the Shockley-like states known in surface physics of solids. However, the analogy between the surface states of photonic crystals and solids is not complete. I will demonstrate the effect of transformation of the Shockley-like surface states into the Tamm-like states, which is non-typical for solids. I will finally discuss the possible application of this effect in surface sensor devices.
Natalia Malkova , NASA Ames Research Center, Moffett Field, CA.
Physics Building, Room A366. (NIST Contact: Garnett Bryant, 301-975-2595, garnett.bryant@nist.gov)

10:30 AM - CNST SEMINAR SERIES: Imaging Magnetic Surfaces with Atomic Resolution
Fueled by the ever increasing data density in magnetic storage technology and the need for a better understanding of the physical properties of magnetic nanostructures, there exists a strong demand for high resolution, magnetically sensitive microscopy techniques. The technique with the highest available resolution is spin-polarized scanning tunneling microscopy (SP STM) which combines the atomic resolution capability of conventional STMs with spin sensitivity by making use of the tunneling magnetoresistance effect between a magnetic tip and a magnetic sample surface. Beyond the investigation of ferromagnetic surfaces, thin films, and epitaxial nanostructures with unforeseen precision, it also allows the achievement of a long-standing dream: the real space imaging of atomic spins in antiferromagnetic surfaces. The lecture addresses a wide variety of phenomena in surface magnetism which in most cases could not be imaged directly before the advent of SP-STM. After starting with a brief introduction of the basics of the contrast mechanism, recent major achievements will be presented, like the direct observation of the atomic spin structure of domain walls in antiferromagnets and the visualization of thermally driven switching events in superparamagnetic particles consisting of a few hundreds atoms only. To conclude the lecture, recently observed complex spin structures containing 15 or more atoms will be presented.
Mattias Bode , University of Hamburg, Institute of Applied Physics and Microstructure Research Center , Hamburg, Germany, mbode@physnet.uni-hamburg.de.
215 Bldg, Rm. C103-C106. (NIST Contact: Jabez McClelland, 301-975-3721, jabez.mcclelland@nist.gov)

2:00 PM - BIOCHEMICAL SCIENCE DIVISION SEMINAR: SYNTHESIS AND STRUCTURE-FUNCTION RELATIONSHIPS OF BOLALIPIDS FOR DEVELOPMENT OF A HIGH-THROUGHPUT MEMBRANE PROTEIN BIOSENSOR
Bolalipids, found in the cell membranes of Archaea, are known to give films that are more rugged than conventional supported bilayer membranes while retaining properties that are expected to support protein activity. This talk will focus on a convergent and efficient synthesis of a bolalipid library to investigate the impact of bolalipid structure on the activity of a histidine-tagged endoplasmic reticulum membrane protein isoprenylcysteine carboxyl methyltransferase (His-Ste 14p) from S. cercvisiae.
Wilma Febo-Ayala , Purdue University.
Adv. Chem. Sciences Lab Bldg, Room A202. (NIST Contact: David Vanderah, 301-975-6438, david.vanderah@nist.gov)


ADVANCE NOTICE

1/16/07 10:30 AM - QUANTUM ELECTRICAL METROLOGY DIVISION SEMINAR: What is the Charge Quantum That Moves in a SET pump (e or not e)?
Single-electron tunneling (SET) devices give us the amazing ability to move electrons around one-by-one in a solid-state device. A very natural question to ask is: Are the "electrons" in this solid-state device identical with free electrons in a vacuum? We have recently completed an analysis that compares the charge quantum in an SET device with the charge of a free electron. I will discuss our understanding of the theoretical question, present the experiment and the result, and discuss implications for supporting the future possible redefinition of the SI.
Neil Zimmerman , Quantum Electrical Metrology Division, NIST.
Metrology Building, Room B365. (NIST Contact: Neil Zimmerman, 301-975-5887, neil.zimmerman@nist.gov)

1/18/07 11:00 AM - STANDARDS ALUMNI ASSOCIATION (SAA) QUARTERLY MEETING: Standards Alumni Association (SAA) Quarterly Meeting
Meeting Date: January 18 (SNOW CLOSURE BACKUP DATE: January 25)***11:00 a.m. Lecture Room D, Administration Building***Speaker: Dr. Belinda Collins, Director, TS***Topic: Technology Services—- Providing World Class Services for NIST in Measurements, Standards Information, and Partnerships ***12:30 p.m.: Lunch in NIST Cafeteria***1:20 p.m.: Tour of the NIST Center for Standards and Certification Information (NCSCI)***(Meet in the rear of the Cafeteria)***2:30 p.m.: Dining Room C— Hospitality
Dr. Belinda Collins , Director, Technology Services, NIST.
Administration Building, Lecture Room D. (NIST Contact: Brian Belanger, 301-282-0708, bcbelanger@aol.com)

1/19/07 10:30 AM - NIST COLLOQUIUM SERIES : Nuclear Power in Space
Space nuclear power and propulsion programs in the U.S. started in 1955 with the ROVER project and included ground testing of nuclear thermal rockets and the first ever deployment and in-space operation of the nuclear powered SNAP-10A in 1965. Key challenges for deploying this technology in space will be reviewed, including ultrahigh temperature nuclear fuels and materials, compact and lightweight reactors and shielding, space-suitable energy conversion systems, and launch and in-orbit safety of nuclear power systems. Some recent accomplishments will be described.
Samim Anghaie , Director, Innovative Nuclear Space Power & Propulsion Institute, University of Florida.
Administration Building, Green Auditorium. (NIST Contact: Kum Ham, 301-975-4203, kham@nist.gov)
Special Assistance Available

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MEETINGS ELSEWHERE


1/8 -- MONDAY

No Scheduled Events

1/9 -- TUESDAY

No Scheduled Events

1/10 -- WEDNESDAY

No Scheduled Events

1/11 -- THURSDAY

No Scheduled Events

1/12 -- FRIDAY

No Scheduled Events

ADVANCE NOTICE

No Scheduled Events

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TALKS BY NIST PERSONNEL

DONAHUE, M. : MICROMAGNETICS ON CURVED GEOMETRIES USING RECTANGULAR CELLS: ERROR CORRECTION AND ANALYSIS.
10th Joint MMM/Intermag Conference, Baltimore, MD, 1/11.

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ANNOUNCEMENTS

FOURTEENTH SIGMA XI POSTDOCTORAL POSTER PRESENTATION
CALL FOR POSTERS: The NIST Chapter of Sigma Xi invites all Post-Doctoral Fellows to present a poster on their scientific research to their NIST coworkers and friends. Guest Scientists who have received their advanced degree in the last five years are also welcome. The poster presentation will take place on February 16, 2007 in Lecture Rooms A and B and the adjoining hallway in the Administration Building from 11 am to 3 pm and will be accompanied by refreshments. All the participating Post-docs and Guest Scientists will be invited to a special reception and lunch hosted by Sigma Xi in the following week when the award for the most outstanding poster will be announced. To participate, send a one page abstract of your poster in MS Word (TITLE all caps, followed by full authors’ names, followed by text) and the author information listed below to both yuqin.zong@nist.gov and to barbara.levin@nist.gov Your abstract has to be approved by your mentor. The author information must include: Your Name, Mentor’s name, Division, Laboratory, Room and Building address, Mail Stop, Telephone #, FAX #, email and whether you are a Sigma Xi member. You must choose a category that best describes your poster: Biology, Biotechnology, Chemistry, Engineering, Materials, Mathematics, or Physics. The Sigma Xi Web page containing abstracts from previous years can be seen at http://www.nist.gov/sigmaxi THE DEADLINE FOR ABSTRACTS IS JANUARY 17, 2007. Posters are numbered according to the date of their receipt. Space is limited, so please sign up early.
NIST Contact: Barbara C. Levin, 301-975-6682, barbara.levin@nist.gov

CALL FOR NOMINATIONS NIST GALLERY OF DISTINGUISHED SCIENTISTS, ENGINEERS, AND ADMINISTRATORS
The NIST Portrait Gallery of Distinguished Scientists, Engineers and Administrators honors former NBS/NIST staff members for outstanding career contributions to the work of NBS/NIST. Portraits and biographies of those selected are displayed in the corridor of the NIST cafeteria at Gaithersburg. Portraits of at most ten additional persons will be added to the Portrait Gallery in 2007. Any current or former NIST staff member may make a nomination. Nominations are encouraged of outstanding NBS staff members who retired before 1963. For such nominations, it is understood that some of the requested data may no longer be available. Nominations of distinguished women and minorities are also encouraged. For persons who were nominated last year, but not selected, a new nomination may be submitted. If a nominee is not selected after two successive years of nomination, the nominee will not be considered for a third successive year. Nomination instructions are available from the Standards Alumni Association, Room A-42 Admin, Mail Stop 0952, NIST, Gaithersburg, MD 20899-0952; telephone 301-975-2486; by email: alumni@nist.gov; or from the SAA website: www.nist.gov/director/saa. Nominations shall be received by the Standards Alumni Association on or before February 16, 2007, by mail or by email to the above addresses. No exceptions will be made to this deadline.
NIST Contact: Anneke Segers, 301-975-2463, johanna.sengers@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: . ., ., .

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NIST WEB SITE ANNOUNCEMENTS

No Web Site announcements this week.

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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.

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