A computational framework, which relies on the discontinuous Galerkin time-domain scheme, is proposed to simulate transient lasing generated by interactions of light with an active medium. The proposed scheme solves a coupled system of the Maxwell and the rate equations. The active medium inside the laser region is described quantum-mechanically by the rate equations to account for the atomic transitions of a multi-level system, while electromagnetic field interactions are described classically by the Maxwell equations. Numerical examples are provided to demonstrate the accuracy and the applicability of the proposed framework.
Bibliographical noteKAUST Repository Item: Exported on 2023-06-06
Acknowledged KAUST grant number(s): 2019-CRG8-4056
Acknowledgements: The authors would like to thank King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award 2019-CRG8-4056.