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*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

63 Citations (Scopus)

Abstract

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
Volume21
Issue number15
DOIs
Publication statusPublished - 2021 Aug 11

Bibliographical note

Publisher Copyright:
© 2021 American Chemical Society. All rights reserved.

Keywords

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

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics
  • Mechanical Engineering

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