Fabrication of a three-dimensional photonic bandgap crystal of airspheres in a titania matrix

M. Diop; G. Maurin; Amir Tork; Roger A. Lessard

doi:10.1117/12.474310

17 February 2003 Fabrication of a three-dimensional photonic band-gap crystal of air-spheres in a titania matrix

M. Diop, G. Maurin, Amir Tork, Roger A. Lessard

Proceedings Volume 4833, Applications of Photonic Technology 5; (2003) https://doi.org/10.1117/12.474310
Event: Applications of Photonic Technology 5, 2002, Quebec City, Canada

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.

Citation Download Citation

M. Diop, G. Maurin, Amir Tork, and Roger A. Lessard "Fabrication of a three-dimensional photonic band-gap crystal of air-spheres in a titania matrix", Proc. SPIE 4833, Applications of Photonic Technology 5, (17 February 2003); https://doi.org/10.1117/12.474310

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