• DocumentCode
    3701843
  • Title

    Restoring whispering gallery modes with transformation optics

  • Author

    Yushin Kim;Soo-Young Lee;Jung-Wan Ryu;Inbo Kim;Jae-Hyung Han;Heung-Sik Tae;Muhan Choi;Bumki Min

  • Author_Institution
    Korea Advanced Institute of Science and Technology, Department of mechanical engineering, 291 Daehak-ro Yuseong-gu, 305-338, Daejeon, South Korea
  • fYear
    2015
  • Firstpage
    148
  • Lastpage
    150
  • Abstract
    Whispering gallery modes (WGMs) have ultra-high quality factor but only non-directional light emission property. We suggest a novel way to restore WGM in resonant cavity of deformed boundary shape with Transformation optics. Conformal mapping make it possible with only density controlled isotropic material. FEM and microwave near-field scanning result prove that our idea is working. It is expected to be applied to wide range of optical cavity.
  • Keywords
    "Cavity resonators","Optics","Refractive index","Q-factor","Conformal mapping","Shape","Microwave theory and techniques"
  • Publisher
    ieee
  • Conference_Titel
    Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2015 9th International Congress on
  • Type

    conf

  • DOI
    10.1109/MetaMaterials.2015.7342554
  • Filename
    7342554
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3701843