TITLE

Photonic bandgap engineering with inverse opal multistacks of different refractive index contrasts

AUTHOR(S)
Dae-Kue Hwang; Heeso Noh; Hui Cao; Chang, Robert P. H.
PUB. DATE
August 2009
SOURCE
Applied Physics Letters;8/31/2009, Vol. 95 Issue 9, p091101
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have self-assembled photonic crystal with a multistack structure using same size of spheres but from materials with different refractive indices. Al2O3, ZnO, and TiO2 are infiltrated into opal templates by atomic layer deposition. Stacking multiple inverse opal structures with different refractive index contrasts broadens the reflection bands dramatically. Numerical simulations with plane wave expansion method show good agreement with experimental results.
ACCESSION #
44066609

 

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