Subwavelength plasmonic lasing from a semiconductor nanodisk with silver nanopan cavity

Soon Hong Kwon, Ju Hyung Kang, Christian Seassal, Sun Kyung Kim, Philippe Regreny, Yong Hee Lee, Charles M. Lieber, Hong Gyu Park

Research output: Contribution to journalArticlepeer-review

220 Citations (Scopus)


We report the experimental demonstration of an optically pumped silver-nanopan plasmonic laser with a subwavelength mode volume of 0.56(λ/2n)3. The lasing mode is clearly identified as a whispering-gallery plasmonic mode confined at the bottom of the silver nanopan from measurements of the spectrum, mode image, and polarization state, as well as agreement with numerical simulations. In addition, the significant temperature-dependent lasing threshold of the plasmonic mode contrasts and distinguishes them from optical modes. Our demonstration and understanding of these subwavelength plasmonic lasers represent a significant step toward faster, smaller coherent light sources.

Original languageEnglish
Pages (from-to)3679-3683
Number of pages5
JournalNano Letters
Issue number9
Publication statusPublished - 2010 Sept 8


  • Surface plasmons
  • active plasmonics
  • nanolasers
  • subwavelength mode volumes

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering


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