Numerical investigations of THz-wave generation in photonic crystal waveguide

Kyosuke Saito, Tadao Tanabe, Yutaka Oyama

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We have presented a numerical analysis to describe the behavior of a quasi-monochromatic pulsed terahertz (THz) wave generation in photonic crystal waveguide (PCW) reported in our group. The frequency-dependent characteristic of the THz-wave generation is investigated numerically by the finite-difference time-domain method. Two different types of phase matching condition are achieved in the basics of the guided mode or air band in the PCW. The calculated THz output spectrum agrees well with the previous experiment one. This letter provides an effective estimation of THz-wave output characteristics and could be used to design the efficient coherent THz-wave source.

Original languageEnglish
Article number6849947
Pages (from-to)1526-1529
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number15
Publication statusPublished - 2014 Aug 1
Externally publishedYes


  • finite-difference time-domain simulation
  • Nonlinear optics
  • photonic crystal waveguide
  • terahertz wave

ASJC Scopus subject areas

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


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