科研之友
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摘要
Two methods suitable for numerical modelling of microlasers (including photonic crystal, microcavity, and random lasers) are presented. Finite-difference time-domain (FDTD) method and a generalized coupled mode theory are discussed in the context of microstructured resonators. The cases of one mode and two modes with near-identical properties but different frequencies are investigated in detail. The predictions of the coupled mode model are compared to FDTD simulations of a microcavity laser based on a single defect and twin coupled defects in a photonic crystal lattice. Different regimes of the mode competition (simultaneous and bistable lasing) are analyzed.
- 出版日期2007-10
