Fall 2009 Seminars

  • September 18, 2009

    Jamie Houseknect - Center for Nanotechnology Education

    Nanotechnology Education

    September 25, 2009

    Rachel Umbel - IUP Physics Undergraduate Student

    Loss Measurements at Elevated Temperatures

    (Sponsored through National Science Foundation) I worked with the IGR group at University of Glasgow during the summer of 2009. The aim of my project was to explore the mechanical loss processes in dielectric mirror coatings, which are used in gravitational wave detectors, at elevated temperatures. This was achieved by measuring the ring downs of coated and uncoated cantilever structures in a specially designed vacuum chamber and calculating their mechanical losses as well as the thermo elastic losses for the various cantilevers. In addition, the coated and uncoated cantilevers mechanical losses and thermo elastic losses were calculated at temperatures up to 500K.

    October 2, 2009

    James Toney Penn State - Electro-Optics Center

    Electromagnetic Simulation Methods for Guided Wave Optics

    October 9, 2009

    P. Kichambare - University of Dayton

    A Matchless Nano-material: Carbon Nanotubes

    October 16

    Mark Regalla - IUP Physics Undergraduate Student

    New Chalcogenide Materials for Thin Film Fresnel Lenses

    The chalcogenide compounds As35S65 and As35S59Se6 are probed for use in thin film Fresnel lenses in this work. Deposited chalcogenide films undergo photostructural transformations when exposed to light with energy greater than or equal to its band gap energy. Bulk chalcogenide glasses were deposited on glass substrates using a high vacuum thermal evaporation deposition coater. Next, the As35S65 and As35S59Se6 samples were irradiated with 365 and 405 nm light under a pre-fabricated mask in a Fresnel lens pattern. Then, they were etched using a non-aqueous amine based solution. The chemical transformations in fresh vs. irradiated, etched, and irradiated and etched As35S59Se6 samples were analyzed using a High-Resolution X-ray Photoelectron Spectroscopy method.

    October 23, 2009

    Natalia Dushkina - Physics Department,  Millersville University

    Structural Colors, Cosmetics and Fabrics

    October 30, 2009

    Mark Kimber - Pitt Materials Science Engineering

    Thermal and Fluids Considerations in Energy Efficiency and Sustainability

    November 06, 2009

    John Mazurowski - Electro Optics Center

    Optimizing Complex Systems Performances Based on Interaction

    November 13, 2009

    Yoosuf Picard - Material Science Engineering, Carnegie Mellon University

    Nondestructive Dislocation Imaging and Analysis in Scanning Electron Microscopy