Bulletin of the American Physical Society
Spring 2010 Meeting of the Ohio Section of the APS
Volume 55, Number 4
Friday–Saturday, April 30–May 1 2010; Flint, Michigan
Session C1: Invited Session II |
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Room: Academic Building McKinnon Theatre |
Saturday, May 1, 2010 10:15AM - 11:15AM |
C1.00001: Photovoltaic -- Conversion of Sunlight to Electricity Invited Speaker: The world is in the midst of an energy systems transformation with concern about energy security, pollution and climate change. Photovoltaic (PV), the conversion of sunlight to electricity, has been getting a great deal of attention as a viable clean energy source. The global shipment for PV increased by more than a factor of four in the last four years; the shipment was about 6 GW in 2009 which is about a {\$}20 billion market. Most of the applications have been in countries that have given special incentives for the use of solar electricity. Reaching grid parity is the focus of many solar companies, and in this talk I shall discuss the innovative efforts that are underway all over the world to bring down the cost of solar electricity. [Preview Abstract] |
Saturday, May 1, 2010 11:15AM - 12:15PM |
C1.00002: Single-Cycle Terahertz Pulses - Generation, Detection, and Applications to Imaging Invited Speaker: Ultrafast lasers can be used to generate coherent single-cycle pulses with durations in the picosecond range, corresponding to bandwidths of several terahertz (THz). This talk will present several methods developed in our laboratory over the past few years to produce both single-cycle and multi-cycle pulses, with a recent emphasis on the generation of high average powers (approaching 1 milliwatt). I will then discuss how such pulses can be used to perform coherent three-dimensional imaging using two image reconstruction algorithms - time-reversal and model-based reconstruction. Finally, I will discuss how analogous THz pulses can be generated acoustically in solid-state media, and how the imaging techniques developed for electromagnetic THz pulses can be applied to picosecond ultrasonic imaging, thus opening the door to acoustic imaging at the nanoscale. [Preview Abstract] |
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