Photonic band-gap structures of core-shell simple cubic crystals from holographic lithography

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We report the investigation of photonic band-gap properties of a core-shell simple cubic structure (air core with a dielectric shell) using a two-parameter level-set approach. The proposed structure can be obtained by partially backfilling high refractive index materials into a polymeric template fabricated by multibeam interference lithography. We find that the shell formation in the inverted simple cubic structure increases the complete photonic band-gap width by 10%-20% in comparison to that of a completely filled structure. The band gap between the fifth and sixth bands begins to appear at a refractive index contrast of 2.7. This study suggests the importance to investigate the core-shell formation in three-dimensional photonic crystals through backfilling, which may offer an additional control over their photonic band-gap properties.
Publisher
AMER INST PHYSICS
Issue Date
2006-03
Language
English
Article Type
Article
Keywords

INTERFERENCE LITHOGRAPHY; FABRICATION

Citation

APPLIED PHYSICS LETTERS, v.88, no.12, pp.119 - 119

ISSN
0003-6951
DOI
10.1063/1.2187438
URI
http://hdl.handle.net/10203/12654
Appears in Collection
CBE-Journal Papers(저널논문)
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