Recent Progress in Nanolaser Technology

Kwang Yong Jeong, Min Soo Hwang, Jungkil Kim, Jin Sung Park, Jung Min Lee, Hong Gyu Park

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)


Nanolasers are key elements in the implementation of optical integrated circuits owing to their low lasing thresholds, high energy efficiencies, and high modulation speeds. With the development of semiconductor wafer growth and nanofabrication techniques, various types of wavelength-scale and subwavelength-scale nanolasers have been proposed. For example, photonic crystal lasers and plasmonic lasers based on the feedback mechanisms of the photonic bandgap and surface plasmon polaritons, respectively, have been successfully demonstrated. More recently, nanolasers employing new mechanisms of light confinement, including parity–time symmetry lasers, photonic topological insulator lasers, and bound states in the continuum lasers, have been developed. Here, the operational mechanisms, optical characterizations, and practical applications of these nanolasers based on recent research results are outlined. Their scientific and engineering challenges are also discussed.

Original languageEnglish
Article number2001996
JournalAdvanced Materials
Issue number51
Publication statusPublished - 2020 Dec 22

Bibliographical note

Publisher Copyright:
© 2020 Wiley-VCH GmbH


  • bound states in the continuum laser
  • parity–time symmetry lasers
  • photonic crystal lasers
  • photonic topological insulator lasers
  • plasmonic lasers

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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