Lasing Action from Anapole Metasurfaces

Aditya Tripathi, Ha Reem Kim, Pavel Tonkaev, Soon Jae Lee, Sergey V. Makarov, Sergey S. Kruk, Mikhail V. Rybin, Hong Gyu Park, Yuri Kivshar

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


We study active dielectric metasurfaces composed of two-dimensional arrays of split-nanodisk resonators fabricated in InGaAsP membranes with embedded quantum wells. Depending on the geometric parameters, such split-nanodisk resonators can operate in the optical anapole regime originating from an overlap of the electric dipole and toroidal dipole Mie-resonant optical modes, thus supporting strongly localized fields and high-Q resonances. We demonstrate room-temperature lasing from the anapole lattices of engineered active metasurfaces with low threshold and high coherence.

Original languageEnglish
Pages (from-to)6563-6568
Number of pages6
JournalNano Letters
Issue number15
Publication statusPublished - 2021 Aug 11


  • Anapole
  • high-index nanoparticle
  • multipole decomposition
  • nanolaser
  • split-nanodisk resonator

ASJC Scopus subject areas

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


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