Title: Patterning and pixelation of colloidal photonic crystals for addressable integrated photonics
Authors: Ding, Tao ×
Luo, Liang
Wang, Hong
Chen, Li
Liang, Kui
Clays, Koen
Song, Kai
Yang, Guoqiang
Tung, Chen-Ho #
Issue Date: 2011
Publisher: Royal Society of Chemistry
Series Title: Journal of Materials Chemistry vol:21 issue:30 pages:11330-11334
Abstract: Patterning colloidal photonic crystals are a first step to the realization of integrated photonic circuits. In this paper, we introduce a new way to pattern colloidal photonic crystals by applying ultrasonication to selectively remove certain parts of the colloidal photonic crystal film from the substrate. These patterns with hydrophobicity can further function as templates to direct the growth of another layer of colloidal photonic crystal in order to reach dual-patterned photonic crystals with distinct hydrophilic and hydrophobic domains. The dual-patterns are responsive to water vapor, which can reversibly switch the reflection color of the hydrophilic regions on and off many times, while the hydrophobic parts are almost unaffected.
ISSN: 0959-9428
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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