Subwavelength plasmonic lasers

Hong Kyu Park, Soon Hong Kwon, Ju Hyung Kang

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We propose two types of full three-dimensional subwavelength surface-plasmon-polariton cavities: a metal-coated dielectric nanowire with an axial heterostructure and dielectric nanodisk/metal nanopan structure. In the metal-coated dielectric nanowire plasmonic structure, surface plasmon-polaritons are strongly confined at the nanowire-metal interface sandwiched by a plasmonic mirror structure that consists of nanowire core/low-index shell/metal shell. High quality factors and subwavelength mode volumes are calculated in this plasmonic structure. In addition, we report the experimental demonstration of an optically-pumped plasmonic lasing action from an InP nanodisk/silver nanopan structure with a subwavelength mode volume. A whispering-gallery plasmonic mode is excited at the bottom of the silver nanopan structure. We believe that these subwavelength plasmonic cavities and lasers represent a significant step towards the realization of faster and smaller coherent light sources which are suitable for an ultracompact nanophotonic integrated circuit.

Original languageEnglish
Title of host publicationInternational Conference on Transparent Optical Networks
Publication statusPublished - 2012 Oct 8
Event14th International Conference on Transparent Optical Networks, ICTON 2012 - Coventry, United Kingdom
Duration: 2012 Jul 22012 Jul 5


Other14th International Conference on Transparent Optical Networks, ICTON 2012
CountryUnited Kingdom



  • nanolaser
  • subwavelength cavity
  • surface-plasmon-polaritons

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Park, H. K., Kwon, S. H., & Kang, J. H. (2012). Subwavelength plasmonic lasers. In International Conference on Transparent Optical Networks [6254432]