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Graduate Student Seminar - 09/30/2016

"Spatiotemporal Optical Vortices"

by Nihal Jhajj

Friday, September 30, 2016 -- 12:00 p.m.
Large Conference Room, 1207 Energy Research Facility

Advisor:  Professor Howard Milchberg

I will present on the first detection of a new kind of optical vortex: the spatiotemporal optical vortex (STOV). STOVs are native to pulsed laser beams, stirring the electromagnetic energy in a pulse along spatial and temporal dimensions, and occur naturally during strongly nonlinear propagation of laser beams. As background, I will cover some of the basics of optical vortices as well as femtosecond filamentation (strongly nonlinear propagation of laser light in a bulk Kerr medium). Using these basics, I will explain how a filamenting pulse universally gives rise to STOVs and how the STOVs then become critical for directing energy flow in the pulse.

For additional information about the IREAP Graduate Student Seminars, contact Peter Megson.

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