Far- and near-field investigations on the lasing modes in two-dimensional photonic crystal slab lasers

Dong Jae Shin, Se Heon Kim, Jeong Ki Hwang, Han Youl Ryu, Hong Gyu Park, Dae Sung Song, Yong Hee Lee

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)


We present experimental investigations on the lasing modes in two-dimensional (2-D) hexagonal cavities defined by photonic crystals on slab waveguide structures. The far-field emission patterns and near-field intensity distributions of the lasing modes are analyzed in polarization-resolved 2-D angular distribution measurements and spectrally resolved near-field scanning optical microscopy. The far- and near-field analyses result in identification of the various lasing modes and their subsequent classification into one- and two-dimensional modes. In the one-dimensional modes oscillating between two parallel boundaries of the cavities, longitudinal and transverse modes are identified and found to have transverse-electric polarization. In the two-dimensional modes oscillating two-dimensionally in the cavities, various modes including whispering-gallery-like modes are observed and found to exhibit various polarization states.

Original languageEnglish
Pages (from-to)857-866
Number of pages10
JournalIEEE Journal of Quantum Electronics
Issue number7
Publication statusPublished - 2002 Jul
Externally publishedYes


  • Far-field
  • Near-field
  • Photonic crystal
  • Semiconductor laser
  • Whispering-gallery-like mode

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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