Effective mode volumes for leaky optical cavities

Philip Trøst Kristensen, Cole Van Vlack, Stephen Hughes

    Research output: Contribution to journalConference articleResearchpeer-review


    We show that for optical cavities with any finite dissipation, the term “cavity mode” should be understood as a solution to the Helmholtz equation with outgoing wave boundary conditions. This choice of boundary condition renders the problem non-Hermitian, and we demonstrate that the common definition of an effective mode volume is ambiguous and not applicable. Instead, we propose an alternative effective mode volume which can be easily evaluated based on the mode calculation methods typically applied in the literature and which is directly applicable to a much wider range of physical systems.
    Original languageEnglish
    JournalAIP Conference Proceedings
    Pages (from-to)100-102
    Publication statusPublished - 2011
    Event4th International Workshop on Theoretical and Computational Nanophotonics - Bad Honnef, Germany
    Duration: 26 Oct 201128 Oct 2011
    Conference number: 4


    Conference4th International Workshop on Theoretical and Computational Nanophotonics
    CityBad Honnef


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