January 26- February 1, 2003 THE BOSTON AREA PHYSICS CALENDAR The Boston Area Physics Calendar is published weekly during the academic year by the Department of Physics at Boston University. You may send your announcement by e-mail (bapc-events@cosmos.phy.tufts.edu ) or FAX (617-353-9393). We cannot accept announcements by telephone. Entries should reach us no later than 11:00 a.m. the Monday of the week proceeding the week of the event. ENTRIES RECEIVED AFTER THE DEADLINE WILL NOT BE PUBLISHED. Monday, January 26, 2004 Tuesday, January 27, 2004 Tuesday, January 27, 2004, 3:30pm Boston University Physics Department Colloquium Metcalf Science Center Rm 107 "Your Mind's Eye: An Interactive Journey Through Perception" Professor Al Seckel Division of Computational and Neuronal Systems California Institute of Technology *refreshments served in Lounge at 3:10pm. Please call 617-353-2600 24 hours in advance for parking.* Tuesday, January 27, 2004, 4:00pm Northeastern University Dana 114 CIRCS "Coupling of Flux Quantum Bits" Dr. Johannes Majer Department of Applied Physics Yale University Refreshments available 3:45pm Tuesday, January 27, 2004, 4:00pm Brandeis University Martin Weiner Lecture Series, Physics Colloquium Physics Building, Abelson 131 "Bubbles for the Biosciences: from drug delivery to microfluidics " Dr. Sascha Hilgenfeldt Institute for Biomedical Technology, U of Twente Refreshments in Room 333 at 3:30pm Tuesday, January 27, 2004, 1:30pm Brandeis University High Energy Theory Seminar Physics Building, Room 229 "Topological Masses from Broken Supersymmetry in String Theory" Tomasz Taylor Stanford University Wednesday, January 28, 2004 Wednesday, January 28, 2004, 3:30-5pm MIT, Rm. {36-156}. "Multidimensional Quantum Dynamics: Methods and Applications" Prof. Victor S. Batista Department of Chemistry, Yale University *Refreshments served during break Wednesday, January 28, 4:30pm Boston University Joint Theory Seminar Physics Research Building, Room 595 3 Cummington Street "Dark Energy, Neutrino Mass and Neutrino Oscillations" Neil Weiner (U. Washington) Refreshments at 4:00 pm Call (617)353-2600 for parking at least 24 hours in advance Wednesday, January 28, 2004, 4:30pm Boston University Joint Theory Seminar Physics Research Building Rm 595 "Dark Energy, Neutrino Mass and Neutrino Oscillations" Neil Weiner University of Washington *Refreshments served at 4:00pm Wednesday, January 28, 4:30pm Boston University Joint Theory Seminar Physics Research Building, Room 595 3 Cummington Street "Dark Energy, Neutrino Mass and Neutrino Oscillations" Neil Weiner (U. Washington) Refreshments at 4:00 pm Thursday, January 29, 2004 Thursday, January 29, 2004, 3:00pm Brandeis University Martin Weiner Lecture Series, Physics Colloquium Physics Building, Abelson 131 "The Physics of Protein and RNA folding " Dr. Lisa Lapidus Stanford University Refreshments in Room 333 at 2:30pm Thursday, January 29, 2004, 4:00 p.m. Harvard-Smithsonian Center for Astrophysics Phillips Auditorium 60 Garden Street, Cambridge " Early Results from the Space Infrared Telescope Facility (SIRTF): A New View of the Infrared Universe" Giovanni Fazio Smithsonian Astrophysical Observatory * tea and cookies at 3:30 p.m. * HARVARD DUALITY SEMINAR Thursday, January 29th, 2004, 4:15 pm Jefferson 453 Jim Hartle (University of California, Santa Barbara): "Generalizing Quantum Mechanics for Quantum Gravity" Friday, January 30, 2004 JOINT PHYSICS & CHEMISTRY COLLOQUIUM Professor James J. Watkins Department of Chemical Engineering and Co-Director, MassNanoTech University of Massachusetts, Amherst Supercritical fluids (SCFs) including carbon dioxide offer a unique technology platform for the fabrication of devices having feature dimensions in the sub-100 nm regime. This talk will describe SCF-based processes for metal deposition and the formation mesoporous silicate films for fabrication of devices with controlled architectures, including microelectronic devices, sensors, separation media and photonic materials. The preparation of Cu interconnect structures in advanced integrated circuits will be used as an illustrative example and other applications will be discussed. As interconnect dimensions recede below 90 nm, the deposition of defect-free high purity Cu films within high aspect ratio features becomes a significant challenge. Recently we demonstrated these demands can be met using chemical fluid deposition (CFD), a new approach that involves the chemical reduction of organometallic compounds in supercritical carbon dioxide. Reduction of Cu(II) or Cu(I) precursors with H2 or alcohol yields remarkably pure films with resistivities as low as 2.0 microohm-cm, well within standards required by the International Technology Roadmap for Semiconductors. CFD can also be used for the deposition of other technologically important metals including Pt, Pd, Au, Ni, Co and their alloys using appropriate precursors. For example, we recently deposited continuous Pd films deep within porous supports for membrane applications. Reduced interconnect dimensions will also place greater demands on dielectrics, requiring the development of robust, mesoporous films. Here we describe a new approach to mesoporous silicates that involves the infusion and selective condensation of metal oxide precursors within one phase domain of a highly ordered, preformed block copolymer template dilated with supercritical carbon dioxide. The template is then removed to produce the mesoporous oxide. To date we have replicated ordered spherical and cylindrical morphologies to yield silica, organosilicate and mixed silica/organosilicate mesostructures in films over 1 micron thick while maintaining all the structural details of the sacrificial copolymer template. One advantage of the process is the elimination of excess alcohol from the reaction media, which provides a pathway for rapid and high degrees of network condensation. Moreover, separation of the template formation and infusion steps is enabling. Ultimately, structure on both the local and device levels can be achieved in three dimensions wholly in the polymer template using established techniques prior to infusion of the inorganic phase. Control over mesoporous oxide structures is enabling for a number of applications. For example oriented arrays of cylindrical nanopores would find application in catalysis, sensors and separations. The approach is extendable to other metal oxides, including titania for optical applications. Wednesday, February 4, 2004 Higgins Hall, Room 310 4:00 p.m.