Self-assembled photonic crystal waveguides

Kang Hyun Baek, Anand Gopinath

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


Self-assembled opal-clad waveguides with pseudophotonic bandgap (pseudo-PBG) at the fiber communication wavelength have been fabricated. For the opal cladding, high-quality colloidal silica spheres were coated on a rib-type waveguide. Theoretical and experimental results show that a pseudo-PBG exists near 1532-nm wavelength, where 10-μm-wide waveguides have a propagation loss of 36.1 dB/cm.

Original languageEnglish (US)
Pages (from-to)351-353
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number2
StatePublished - Feb 2005

Bibliographical note

Funding Information:
Manuscript received May 28, 2004; revised September 29, 2004. This work was supported by a grant from 3M Co. and the University of Minnesota. The authors are with the Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN 55455 USA (e-mail:; Digital Object Identifier 10.1109/LPT.2004.839789


  • Integrated optics
  • Optical waveguides
  • Photonic bandgap (PBG)
  • Self-assembled photonic crystals (PCs)


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