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OSA Student Chapter Meeting


MAIN TALK
SPEAKER: Luqi Yuan
TITLE:Transient lasing without inversion: generation of high frequency light by driving low frequency transition
ABSTRACT:
Lasing without inversion (LWI) is a subject of long standing interest. Most of the previous analyses deal with steady-state. Here we investigate LWI in transient regime which allows us to utilize coherence effects on a time scale shorter than fast collision time. We consider medium made of three-level atoms and the lower frequency transition is driven by a detuned laser field and LWI is achieved on the high frequency transition. The possibility of high-order sideband generation is also discussed.



OPTICS NEWS
SPEAKER: Les Sheffield
TITLE: Accelerator on a chip!
ABSTRACT:
A new development in the world of accelerator physics could change how we view particle accelerators forever. This research performed at Stanfords National Accelerator Laboratory is a simple proof of principle demonstration that paves the way for a fundamentally new approach to how acceleration is performed on charged particles. This new method utilizes ultrafast lasers and fused silica microstructures to generate the acceleration gradient and with this initial test the gradients achieved are 10 times more than the SLAC linear accelerator itself! Further experimentation will surely lead to much larger values of acceleration and test the scalability of this technique.



Friday, November 1, 2013
IQSE 578, 12:30 noon
Mitchell Physics Building


Department of Physics and Astronomy
Institute for Quantum Science and Engineering
Texas A&M University

(Pizza lunch as usual. Newcomers welcome!)

Host: Ellie Figueroa