Magneto-Optical effects and scattering properties of plasmons in graphene.
Speaker:
Luis Martin-Moreno, Instituto de Ciencia de Materiales de Aragón
Date and Time:
Tuesday, May 29, 2018 - 2:00pm to 2:50pm
Location:
Fields Institute, Room 230
Abstract:
One of the remarkable properties of graphene is that is supports electromagnetic modes (known as graphene plasmons), which can be electrically controlled by applying an external bias. These modes are extremely bounded, which makes them ideal for applications such as sensing. Interestingly, under a perpendicular magnetic field graphene provides record per-atom rotation of the polarization of light (Faraday rotation), which may lead to ultra-compact optical isolators.
In this talk I analyze two basic problems: (i) how to improve the Faraday rotation provided by graphene by using graphene plasmons and internal gauge fields and (ii) the scattering of graphene plasmons by conductivity and topographic defects.