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Numerical modelling of lasing in microstructures
Author(s) -
Zhukovsky Sergei V.,
Chigrin Dmitry N.
Publication year - 2007
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200743188
Subject(s) - lasing threshold , finite difference time domain method , resonator , bistability , laser , photonic crystal , context (archaeology) , lattice (music) , materials science , optics , optoelectronics , physics , acoustics , paleontology , biology
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. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)