The authors propose an all-transition-metal-dichalcogenide (TMDC) nanobeam resonator with an active monolayer, designed to function as a high-β-factor nanolaser. A theoretical and computational framework for modeling and optimizing the Purcell enhancement was developed, based on a resonance expansion to resolve sharp spectral peaks from high-Q resonances. JCMsuite was used to perform the finite element method simulations of the 3D resonator and its resonance modes, and its Bayesian optimization tool was employed to maximize the Purcell enhancement under a Q-factor constraint.
F. Binkowski, et al. High Purcell enhancement in all-TMDC nanobeam resonator designs with active monolayers for nanolasers. Phys. Rev. B 112, 235410 (2025).
DOI: 10.1103/nxh9-dhvx