Self-organizing three-dimensional colloidal photonic crystal structure with augmented dielectric contrast

Koichi Fukuda, Hongbo Sun, Shigeki Matsuo, Hiroaki Misawa

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

We demonstrated that low-velocity quasi-equilibrium evaporation of water from an aqueous colloidal solution of polystyrene microparticles with 220nm diameter enabled the preparation of a three-dimensional colloidal-air photonic crystal structure without significantly distorting the lattice, and the absorption peak of the structure was observed at around 500 nm. A much stronger photonic band gap effect is expected due to an approximately 30% increase of the dielectric contrast.

Original languageEnglish
Pages (from-to)L508-L511
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume37
Issue number5 PART A
Publication statusPublished - 1998 May 1
Externally publishedYes

Keywords

  • Colloidal self-organization
  • Dielectric contrast
  • Photonic band gap
  • Photonic crystal
  • Polymer particle

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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