We report on the fabrication and optical characterization of photonic superlattices formed of colloidal photonic crystals. The superlattice periodicity induces the formation of minibands due to folding of the photonic band structure. This represents the first instance in which mid-gap states have been incorporated into a colloidal photonic crystal via a specifically engineered structural modification.
Optical superlattices of colloidal photonic crystals
Active and Passive Optical Components for WDM Communications II ; 2002 ; Boston,MA,United States
Proc. SPIE ; 4870
2002-07-11
Conference paper
Electronic Resource
English
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