High-Q surface-plasmon-polariton whispering-gallery microcavity

  title={High-Q surface-plasmon-polariton whispering-gallery microcavity},
  author={Bumki Min and Eric P. Ostby and Volker J. Sorger and Erick Ulin-Avila and Lan Yang and Xiang Zhang and Kerry J. Vahala},
Surface plasmon polaritons (SPPs) are electron density waves excited at the interfaces between metals and dielectric materials. Owing to their highly localized electromagnetic fields, they may be used for the transport and manipulation of photons on subwavelength scales. In particular, plasmonic resonant cavities represent an application that could exploit this field compression to create ultrasmall-mode-volume devices. A key figure of merit in this regard is the ratio of cavity quality factor… 

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