Erlangen 2022 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

Q: Fachverband Quantenoptik und Photonik

Q 40: Optomechanics and Photonics

Q 40.10: Poster

Wednesday, March 16, 2022, 16:30–18:30, P

Modeling of MoS2 in interaction with electromagnetic radiation — •Viktor Bender, Francesco Intravaia, and Kurt Busch — Institute for Physics, Humboldt University of Berlin, Berlin, Germany

A framework to investigate the interaction of 2D materials with electromagnetic radiation has been developed in the joint group between the Humboldt University of Berlin and the Max Born Institute on Theoretical Optics & Photonics on the example of graphene flakes. Here, using a tight binding approach to model the electronic structure, the material is additionally treated as a conductive current sheet to calculate the electromagnetic feedback. Introducing a minimal coupling between the time-dependant Schrödinger equation and Maxwell's equations allows then for a numerical treatment of the respective fields in time-domain. A crucial role to perform numerical simulations is here played by the group's implementation of the Discontinuous Galerkin Time-Domain (DGTD) finite element method. In my work I extend the mentioned framework for graphene to MoS2, using the DGTD software tool to study respective optical properties and effects, collaborating with and providing predictions for the experiment. Adjustments to respective tight-binding approaches for MoS2 have already been reported and an extension of the model for the treatment of excitons seems also feasible.