Coplanar plasmonic nanolasers based on edge-coupled hybrid plasmonic waveguides

Yusheng Bian, Zheng Zheng, Ya Liu, Jinsong Zhu, Tao Zhou

Research output: Contribution to journalArticlepeer-review

61 Scopus citations


A novel type of coplanar plasmonic laser based on an edge-coupled hybrid plasmonic waveguide is proposed and analyzed theoretically. This structure enables the realization of an air gap between the nanowire and the metal layer that could facilitate enhanced field confinement. By simulating the modal properties and the lasing threshold under different geometric parameters, it is demonstrated that with smaller gap widths and metal films of a larger rounded-corner radius, the lasing threshold could be reduced significantly. The structure could enable deep-subwavelength lasing with low pump thresholds and be readily integrated with other plasmonic structures for future coplanar active plasmonic circuits.

Original languageEnglish (US)
Article number5753919
Pages (from-to)884-886
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number13
StatePublished - 2011

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


  • Nanolasers
  • optical waveguides
  • surface plasmon


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