Seminar | November 18 | 2-3 p.m. | 180 Tan Hall

 Prof. Richard Averitt, UC San Diego, Physics

 Berkeley Nanosciences and Nanoengineering Institute

A host of contemporary materials provide novel routes to manipulate and control light, broadly defined as spanning from microwave through visible wavelengths. Conversely, light can also be used to manipulate the properties of materials through resonant and non-resonant interactions enabling, as examples, the detection, modulation, and nonlinear manipulation of light. Moreover, dynamic and nonlinear light-matter interactions encode microscopic and mesoscopic properties not evident in linear response.

The terahertz region of the electromagnetic spectrum (roughly 0.1 – 20 THz) is particularly fertile from fundamental and applied perspectives, with plasmonics, metamaterials, and quantum materials (and combinations thereof) being actively investigated. I will present examples from our research in this area spanning from the “simple” to complex. This includes nonlinear and tunable InAs plasmonic disks and mushrooms, metamaterial-quantum material coupling in insulator-to-metal transition compounds and superconductors and, in a putative excitonic insulator, terahertz parametric amplification arising from coherent order parameter dynamics.
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Rick Averitt did his PhD at Rice and postdoc at Los Alamos. After some years there and even more at Boston Univ, he transitioned to UCSD in 2014.

 victorr@eecs.berkeley.edu, 510-643-6681

 Avi Rosenzweig,  victorr@eecs.berkeley.edu,  510-643-6681

Event Date
-
Status
Happening As Scheduled
Primary Event Type
Seminar
Location
180 Tan Hall
Performers
Prof. Richard Averitt, UC San Diego, Physics
Subtitle
Nano Seminar Series
Event ID
147467