Speaker: Dionisios Margetis, Department of Mathematics and Institute for Physical Science & Technology, University of Maryland, College Park
Title: Plasmonics on two-dimensional materials:
Dispersion and homogenization
Abstract:
The advent of two-dimensional materials such as graphene, black phosphorus and
transition metal dichalcogenides with a wide range of optical and electronic
properties offers the promise of excellent efficiency in light-matter
interaction at the nanoscale.
These systems may allow for the propagation of fine-scale electromagnetic
waves, called surface plasmon-polaritons (SPPs), which defy the typical
diffraction limit.
In this talk, I will discuss recent theoretical progress in understanding how
the material geometry, e.g., the presence of edges as well as the formation of
layered structures in the presence of material anisotropy, may affect the SPP
dispersion. To this end, I will formulate and analyze physically inspired
boundary value problems for the time-harmonic Maxwell equations. If time
permits, I will discuss extensions of the theory coming from coupling
electromagnetism with hydrodynamic equations for the 2D electron system.
Department of Mathematical Sciences
George Mason University
4400 University Drive, MS 3F2
Fairfax, VA 22030-4444
http://math.gmu.edu/
Tel. 703-993-1460, Fax. 703-993-1491