Ultra-small photonic crystal zero-cell laser cavities

Ho Seok Ee, Hong Gyu Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


We investigate optical characteristics of the ultra-small zero-cell cavities that consist of two, four and three shifted lattice points in square- and triangular-lattice photonic crystal structures. Mode volumes and Q factors of these cavities are systematically studied using three-dimensional finite-difference-time-domain simulation. In particular, an extremely small mode volume of ∼0.015 -μ3 [∼1.5 (λ/2n slab)3] is obtained in the triangular-lattice three-hole-shifted cavity. In an experiment, we demonstrate optically pumped room-temperature lasing action with a low lasing threshold of ∼130 -W in a square-lattice two-hole-shifted cavity. The operation of this ultra-small laser is unambiguously confirmed by the numerical simulation based on the actual fabricated structures.

Original languageEnglish
Title of host publicationOptoelectronic Integrated Circuits XI
Publication statusPublished - 2009
EventOptoelectronic Integrated Circuits XI - San Jose, CA, United States
Duration: 2009 Jan 282009 Jan 29

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherOptoelectronic Integrated Circuits XI
Country/TerritoryUnited States
CitySan Jose, CA


  • Microcavities
  • Photonic crystals
  • Photonic integrated circuits
  • Semiconductor lasers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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