Multichannel photonic crystal wavelength filter array for near-infrared wavelengths

Yasuo Ohtera, Teppei Onuki, Yoshihiko Inoue, Shojiro Kawakami

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)


Multichannel wavelength filters consisting of 2-D photonic crystal (PhC) for the near-infrared wavelength region ∼800 nm) are demonstrated. The filter is a thin-film wavy multilayer structure and is fabricated by the autocloning method, which is based on a radio frequency bias sputtering process. Twelve long-pass-type filter regions are integrated on a common silica substrate. Sharp cutoff characteristics and almost equal channel spacing are experimentally verified. To precisely control the effective lattice constant of PhC, a modulated lattice structure on the substrate is utilized.

Original languageEnglish
Pages (from-to)499-503
Number of pages5
JournalJournal of Lightwave Technology
Issue number2
Publication statusPublished - 2007 Feb
Externally publishedYes


  • Autocloning
  • Lattice modulation
  • Photonic band gap (PBG)
  • Photonic crystal (PhC)
  • Wavelength filter

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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