Paper
High Purcell enhancement in all-TMDC nanobeam resonator designs with active monolayers for nanolasers
Authors
Felix Binkowski, Aris Koulas-Simos, Fridtjof Betz, Matthias Plock, Ivan Sekulic, Phillip Manley, Martin Hammerschmidt, Philipp-Immanuel Schneider, Lin Zschiedrich, Battulga Munkhbat, Stephan Reitzenstein, Sven Burger
Abstract
We propose a nanobeam resonator incorporating an active monolayer, designed to achieve a high Purcell enhancement. The resonator is fully composed of transition-metal-dichalcogenide materials and intended to operate as a high-beta-factor nanolaser. A theoretical framework that models and optimizes the Purcell enhancement associated with the emission from atomically thin layers is developed. This framework is based on a resonance expansion, enabling spectral resolution of physical quantities governed by high-Q resonances. The numerical optimization of the resonator leads to the presence of a high-Q resonance supporting a strong electric field confinement in the monolayer to maximize the modal gain.