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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

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