Nonlinear optical response of 1-D photonic crystals fabricated by using a sol-gel method

Jisoo Hwang, Min Jung Kim, J. W. Wu, Seung Mook Lee, Bum Ku Rhee, Ji Hoon Kwak, Ilsin An

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The picosecond nonlinear optical response in five-bilayered SiO 2/TiO2 structures of one-dimensional photonic crystals fabricated by using a sol-gel method is reported. We observe nonlinear optical changes in the transmission at both bandgap edges, an 8 % decrease at the high-energy edge, and a 4.5 % increase at the low-energy edge. These changes correspond to a blue shift of the bandgap. The observed reponse originates from the optical nonlinearity of the TiO2 layer.

Original languageEnglish
Pages (from-to)2128-2131
Number of pages4
JournalJournal of the Korean Physical Society
Volume49
Issue number5 I
StatePublished - Nov 2006

Keywords

  • Kerr
  • Nonlinear
  • Optical switching
  • Optical transmission
  • Photonic crystal
  • Pump probe
  • SiO
  • Sol-gel
  • TiO

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