Events

http://physics.oregonstate.edu/gradorientation

The natural time- and length-scales of the elementary excitations in matter define a new regime of ultrafast vibrational and electron dynamics as the dimensions of the medium shrink into the 1 to 100 nm range. To achieve the required femtosecond temporal and nanometer spatial resolution we take advantage of the optical antenna properties of nanoscopic metal tips. They provide the necessary local field enhancement and spatial confinement for so called scattering-type near-field optical microscopy.

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Laser annealing and ablation was a subject of research since the first days of lasers. Recent interest to this topic is associated with discovering of new thermo-physical regimes at which materials subjected to laser irradiation are being structured at the sub-wavelength dimension scale. Our recent studies report super-resolution in laser ablation of thin films and formation of nano-sharp conical structures on silicon-on-insulator (SOI) initiated by single pulse of a KrF excimer laser operating at the wavelength of 248nm.

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Paradigms in Physics is a novel upper-division physics curriculum developed at Oregon State University. It teaches students to think like professional physicsists, and computation is an essential element. The junior year comprises ten modular courses, each focused on a specific paradigm or class of physics problems that serves as the centerpiece of the course and on which different tools and skills are built. A variety of computational examples and exercises are used throughout the courses.

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