Design of ultra-small metallic-semiconductor nano-ring cavity lasers

Chee Wei Lee, Qian Wang, Gurpreet Singh, Seng Tiong Ho

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We present design and analysis of metallic-semiconductor nanoring laser lasing at around 1450 nm wavelength, utilizing a body-of-revolution finite-difference-time-domain (BOR-FDTD) simulation incorporated with a semiclassical multilevel model for semiconductor gain medium and the Drude-Lorentz model for metal, which is developed for efficient simulation of disk/ring plasmonic laser. As compared to other literature, our nanoring laser works in radial mode with resonance cycle, m=1, which could facilitate potential in-plane out-coupling, and is wafer bonded onto Si platform for potential electronic-photonic integration. The total footprint, the physical device volume, and the effective mode volume of the nanolaser are only about 0.038 μ m2, 1.1(λ2n)3, and 0.001(λ2n)3, respectively, where n is the average refractive index of the gain medium. To the best of our knowledge, our nanolaser is the smallest reported to date.

Original languageEnglish (US)
Article number6512587
Pages (from-to)1153-1156
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number12
StatePublished - 2013


  • Plasmonics
  • nanolaser
  • ring resonator
  • semiconductor laser

ASJC Scopus subject areas

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


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