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OSA Student Chapter Meeting



MAIN TALK

SPEAKER:Anatoly Svidzinsky

TITLE:From LASER to QASER: Light Amplification by Superradiant Emission of Radiation



ABSTRACT:
A laser generates light through stimulated emission of radiation and requires population inversion. I will discuss a new kind of quantum amplifier based on collective superradiant emission which does not need any population in the excited state. Light amplification occurs due to the difference combination resonance between the driving field and two high frequency normal modes of the coupled light-atom system. To achieve gain one must suppress a time-dependent Stark shift produced by the driving field. The resulting superradiant amplifier holds promise for a new kind of generator of high frequency (e.g. XUV or X-ray) coherent radiation utilizing low frequency (e.g. Infrared) drive. I will provide a physically appealing explanation of Quantum Amplification by Superradiant Emission of Radiation (QASER) operation in terms of coupled classical oscillators. I will also present an experiment which demonstrates the QASER amplification mechanism in an electronic circuit.



Friday, September 6th, 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: Andrew Traverso