'Hexagon-type' Photonic crystal slabs based on SOI

C.G. Bostan, R.M. de Ridder

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    In this paper we discuss the design of a novel category of photonic crystal slabs (PCS) and as an example, we consider structures based on SOI wafers. Fabrication issues related to lithographic accuracy are addressed, too. The geometry consists in a triangular lattice of hexagons having their symmetry axes rotated with respect to the lattice.We show that the mirror-symmetric 'hexagon-type' PCS with air claddings can have an absolute (i.e. polarization independent) gap in guided modes with normalized width of approximately 10%. This gap, although reduced to about 4%, is still present in an asymmetric geometry, when the under-cladding is a silicon oxide layer with deeply etched holes.
    Original languageEnglish
    Title of host publicationProceedings 2002 Seventh Annual Symposium of the IEEE/LEOS Benelux Chapter
    EditorsTaco D. Visser, Daan Lenstra, Hugo F. Schouten
    Place of PublicationAmsterdam
    PublisherVrije Universiteit Amsterdam
    Number of pages4
    ISBN (Print)90-807519-1-X
    Publication statusPublished - 9 Dec 2002
    Event7th IEEE/LEOS Benelux Chapter Annual Symposium 2002 - Amsterdam, Netherlands
    Duration: 9 Dec 20029 Dec 2002
    Conference number: 7


    Conference7th IEEE/LEOS Benelux Chapter Annual Symposium 2002


    • METIS-208227
    • IR-58193


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