Paper
4 November 2002 Novel device structures based on colloidal photonic crystals
Rajesh Rengarajan, Tushar Prasad, Vicki L. Colvin, Daniel Mittleman
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Abstract
We describe two different ideas for novel architectures based on photonic crystals of sub-micron colloids. The first involves the formation of photonic superlattices from 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. The second idea involves applying the superprism concept to three-dimensionally periodic structures. Near a photonic band edge, the diffraction angle is extremely sensitive to the wavelength and propagation direction of the incident light. We analyze this effect in the context of macroporous polymer thin films formed from colloidal crystal templates.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Rajesh Rengarajan, Tushar Prasad, Vicki L. Colvin, and Daniel Mittleman "Novel device structures based on colloidal photonic crystals", Proc. SPIE 4809, Nanoscale Optics and Applications, (4 November 2002); https://doi.org/10.1117/12.451656
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Cited by 1 scholarly publication.
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KEYWORDS
Photonic crystals

Crystals

Superlattices

Dispersion

Optical spheres

Wave propagation

Polymers

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