High-Q (>750,000) photonic crystal nanocavities fabricated from chalcogenide glass fully embedded in an index-matched cladding

Xin Gai*, Barry Luther-Davies, Thomas P. White

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    We have fabricated a Ge11.5As24Se64.5 2-D photonic crystal containing a hetero-structure cavity fully embedded in a cladding with index of 1.44. Because of the low index contrast of this structure (≈1.2) we had to use a W0.54 defect waveguide to inhibit losses to continuum modes above the light line. By has allowed optical cavities with very high Q (>750,000) to be obtained.

    Original languageEnglish
    Title of host publicationPhotonic Crystal Materials and Devices X
    DOIs
    Publication statusPublished - 2012
    EventPhotonic Crystal Materials and Devices X - Brussels, Belgium
    Duration: 16 Apr 201219 Apr 2012

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    Volume8425
    ISSN (Print)0277-786X

    Conference

    ConferencePhotonic Crystal Materials and Devices X
    Country/TerritoryBelgium
    CityBrussels
    Period16/04/1219/04/12

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