Room-temperature continuous wave lasing in deep-subwavelength metallic cavities under electrical injection

K. Ding, Z. C. Liu, L. J. Yin, M. T. Hill, M. J H Marell, P. J. Van Veldhoven, R. Nöetzel, Cun-Zheng Ning

Research output: Contribution to journalArticlepeer-review

131 Scopus citations


Plasmonic nanolasers and spasers continue to attract a great deal of interest from the physics and nanophotonics community, with the experimental observation of lasing as a focus of research. We report the observation of continuous wave lasing in metallic cavities of deep subwavelength sizes under electrical injection, operating at room temperature. The volume of the nanolaser is as small as 0.42λ3, where λ = 1.55 μm is the lasing wavelength. This demonstration will help answer the question of how small a nanolaser can be made, and will likely stimulate a wide range of fundamental studies in basic laser physics and quantum optics on truly subwavelength scales. In addition, such nanolasers may lead to many potential applications, such as on-chip integrated photonic systems for communication, computing, and detection.

Original languageEnglish (US)
Article number041301
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number4
StatePublished - Jan 4 2012

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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