Colloquium: Dynamics and Control in Plasmonic, Meta, and Quantum Materials

Datum

22.05.2023

Zeit

16:30 - 17:30

Sprecher

Prof. Richard Averitt

Zugehörigkeit

University of California San Diego

Serie

MPI-PKS Kolloquium

Sprache

en

Hauptthema

Physik

Andere Themen

Physik

Beschreibung

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 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.

Letztmalig verändert: 22.05.2023, 07:37:04