Simplified sedimentation process for 3D photonic thick layers/bulk crystals with a stop-band in the visible range

François Bresson, Chii Chang Chen, Gou Chung Chi, Yu Wen Chen

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Self-organization of nano-size spherical particles in opal-like structures has been demonstrated to be a powerful mean to build three-dimensional (3D) photonic crystal. We here present a simplified sedimentation process leading to photonic crystal layer with a non-absolute bandgap in the visible range. The stacking organization is cross checked directly by classical optical microscopy (COM), atomic force microscopy (AFM) and scanning electron microscopy (SEM), giving a detailed scheme of the short range and long range organization, and indirectly by reflection/transmission spectroscopy for different incidence angles. The results show a very good resonance associated with a low cost deposition technique. The implementation of our method for further application like photonic waveguides is also discussed.

Original languageEnglish
Pages (from-to)281-288
Number of pages8
JournalApplied Surface Science
Volume217
Issue number1-4
DOIs
StatePublished - 15 Jul 2003

Keywords

  • Defects
  • Opal
  • Photonic crystals
  • Self-assembly
  • Spectroscopy

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