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Proceedings Paper

Fabrication of a three-dimensional photonic bandgap crystal of airspheres in a titania matrix
Author(s): M. Diop; G. Maurin; Amir Tork; Roger A. Lessard
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Paper Abstract

A three-dimensional (3D) colloidal crystal have been grown from an aqueous colloidal solution of highly monodisperse submicrometer-sized polystyrene spheres using a self-assembly processing technique. The electromagnetic waves diffracted by this crystal can interfere and give rise to a photonic band-gap. However, due to the low refractive index contrast within this material the band-gap is incomplete. By filling the voids between the spheres of the colloidal crystal with titania and removing the polystyrene beads by sublimation, we obtained an inverse-opal structure with an increased refractive index contrast showing strong opalescence.

Paper Details

Date Published: 17 February 2003
PDF: 8 pages
Proc. SPIE 4833, Applications of Photonic Technology 5, (17 February 2003); doi: 10.1117/12.474310
Show Author Affiliations
M. Diop, Univ. Laval (Canada)
G. Maurin, Univ. Laval (Canada)
Amir Tork, Univ. Laval (Canada)
Roger A. Lessard, Univ. Laval (Canada)

Published in SPIE Proceedings Vol. 4833:
Applications of Photonic Technology 5

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