Strong coupling between the electronic states of monolayer transition metal dichalcogenides (TMDC) such as MoS2, MoSe2, WS2, or WSe2, and a two-dimensional (2D) photonic cavity gives rise to several exotic effects. The Dirac type Hamiltonian for a 2D gapped semiconductor with large spin-orbit coupling facilitates pure Jaynes-Cummings type coupling in the presence of a single mode electric field. The presence of an additional circularly polarized beam of light gives rise to valley and spin dependent cavity-QED properties. The cavity causes the TMDC monolayer to act as an on-chip coherent light source and a spontaneous spin-oscillator. In addition, a TMDC monolayer in a cavity is a sensitive magnetic field sensor for an in-plane magnetic field.
@article{arxiv.1512.02712,
title = {Strong Cavity-Pseudospin Coupling in Monolayer Transition Metal Dichalcogenides: Spontaneous Spin-Oscillations and Magnetometry},
author = {Amrit De and Roger Lake},
journal= {arXiv preprint arXiv:1512.02712},
year = {2017}
}