MSE Colloquium - Prof. Ivan Avrutsky, Wayne State University
Date: January 28, 2011 from 2:00 pm to 3:00 pm EST
Location: Room 214 in S.W. Mudd
Contact: For further information regarding this event, please contact Wesley Hattan by sending email to wjh2121@columbia.edu or by calling 2128547860.
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Ivan Avrutsky
Wayne State University

Extreme Confinement with Plasmonic Modes

Strong confinement of electromagnetic field of guided modes is essential for development of compact optolelectronic devices and densely integrated photonic systems. Multiple technical solutions for highly confined modes have been considered, but the problem is far from being solved completely. The resonant surface plasmons, though known for a while, have not been studied in detail because typical material constants would be far from the resonant condition. We have predicted recently that in case when both refractive index and optical gain of the dielectric are appropriately adjusted, the surface plasmon-polariton turns into a resonant mode with extremely short effective wavelength and field confinement theoretically approaching the atomic scale. Here we discuss our recent studies in the field of plasmonics including the concept of bulk plasmonic supermodes in metal-dielectric structures, resonant surface plasmons, and guided modes in the conductor-gap-dielectric system.    

Bio-sketch: Dr. Ivan Avrutsky is Associate Professor of Electrical and Computer Engineering at Wayne State University in Detroit, MI. Dr. Avrutsky also holds adjunct appointment at Wayne State's Department of Physics and Astronomy. In 2009-2010 Dr. Avrutsky was with Air Force Research Lab at Hanscom, MA, as a visiting scientist, on sabbatical leave from Wayne State continued by the Air Force Summer Faculty Fellowship Program. Prior to joining Wayne State in 1998, Dr. Avrutsky was a Postdoctoral Fellow with Nortel Institute for Emerging Technologies at University of Toronto in Canada and Senior Research Fellow with the General Physics Institute of Russian Academy of Sciences in Moscow, Russia. Ivan Avrutsky holds MSc degree in Laser Physics (1986, with honor) from Moscow Institute of Physics Technology and PhD degree in Physics and Mathematics (1988) from the General Physics Institute.

Dr. Ivan Avrutsky is interested in optoelectronics, integrated optics, and laser physics. Subjects of particular interest are optical devices employing resonant phenomena in waveguide gratings, nanoscale photonics, and nanomanufacturing technologies.