[Illinois] Ultra-thin Plasmonic Metasurfaces
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Abstract
Most optical components can be grouped under the umbrella of "bulk optics"; i.e. they generally have a non-negligible thickness compared to the wavelength of light. This is the case for prisms, lenses, etc., all of which must be of sufficient thickness such that light accumulates a substantial amount of optical phase upon propagation.
In this talk, I will describe our development of optical components based on plasmonics that are flat and thin compared to the wavelength of light. We explore approaches to redirect, and reshape, absorb, and emit light with ultra-thin plasmonic structures which are easy to fabricate with conventional micro- and nanofabrication techniques. Furthermore by incorporating materials with widely-tunable optical properties such as vanadium oxide and graphene into these ultra-thick components we can create dynamically reconfigurable optical elements operating at nanosecond time scales.
Bio
Prof. Kats received his BS in Egngineering Physics from Cornell University in 2008 and PhD in Applied Physics from Harvard University in 2014, where he was also briefy a postdoctoral scholar. Mikhail is currently an Assistant Professor of Electrical and Computer Engineering at the University of Wisconsin - Madison. His research interests include photonics, plasmonics, nanoscale science, and device physics
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University of Illinois at Urbana-Champaign