A Bloch mode expansion approach for analyzing quasi-normal modes in open nanophotonic structures

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2014

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We present a new method for determining quasi-normal modes in open nanophotonic structures using a modal ex- pansion technique. The outgoing wave boundary condition of the quasi-normal modes is satisfied automatically without absorbing boundaries, representing a significant advantage compared to conventional techniques. The quasi-normal modes are determined by constructing a cavity roundtrip matrix and iterating the complex mode wavelength towards a unity eigenvalue. We demonstrate the method by deter- mining quasi-normal modes of cavities in two-dimensional photonic crystals side-coupled to W1 waveguides.
Original languageEnglish
Title of host publicationProceedings of META 2014
Number of pages3
Publication date2014
StatePublished - 2014
EventMETA'14 - Singapore, Singapore

Conference

ConferenceMETA'14
Number5
LocationNanyang Technological University
CountrySingapore
CitySingapore
Period20/05/201423/05/2014
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