Source code and simulation results: High Purcell enhancement in all-TMDC nanobeam resonator designs with active monolayers for nanolasers

This publication offers the necessary data and scripts to replicate the content of the paper [F. Binkowski et al., Phys. Rev. B 112, 235410 (2025)]. A theoretical framework that models and optimizes the Purcell enhancement associated with the emission from atomically thin layers is developed. The framework is applied to investigate a nanobeam resonator which is fully composed of TMDC materials and intended to operate as a nanolaser. Usage All Matlab files can be run without computing finite element solutions as the required data is already computed and stored. However, in order to run the scripts, corresponding place holders have to be replaced with a path to your installation of JCMsuite and JCMoptimizer. Free trial licenses are available, please refer to the homepage of JCMwave and JCMoptimizer. The scripts are named according to the individual figures.Note that the file size of figure05.zip is large because it contains all resonance modes (N = 16) for different finite element degrees (p=1,...,4), for both the optimizations with and without the Q-factor constraint. Requirements JCMsuite (tested with version 6.4.8) JCMoptimizer (tested with version 2.0.5) MATLAB (tested with version R2023b) RAM Requirements For the convergence plot in Fig. 4(b), resonance problems with different finite element degrees (p) are computed. p = 1: 4.3 GB (accuracy insufficient) p = 2: 44.6 GB p = 3: 266.0 GB p = 4: 1250.4 GB Acknowledgments We acknowledge funding by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy - The Berlin Mathematics Research Center MATH+ (EXC-2046/1, project ID: 390685689), by the German Federal Ministry of Research, Technology and Space (BMFTR, Forschungscampus MODAL, project 05M20ZBM), by the Senate of Berlin, within the Program for the Promotion of Research, Innovation and Technology (ProFIT) co-financed by the European Regional Development Fund (ERDF, application no. 0206824, SQALE), by the European Research Council (ERC-StG ``TuneTMD'', grant no. 101076437), and by the Villum Foundation (grant no. VIL53033).