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Proceedings Paper

Graded-index colloidal photonic crystals and their versatile photonic applications
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Paper Abstract

A novel photonic crystal in which the refractive index of the interstitial void region in a colloidal crystal is gradually changed with respect to the specific direction of the crystal was proposed. This was achieved by infiltrating polymers using the interfacial-gel polymerization with high refractive index dopants. Therefore, the resulting colloidal photonic crystal has a gradually varying stop-band at different positions of the crystal when the incident light was normal to the [111] crystallographic axis. This structure could be a kind of tunable photonic crystals based on the positional variations. The optical properties and potentials for other photonic applications will be investigated.

Paper Details

Date Published: 29 December 2004
PDF: 9 pages
Proc. SPIE 5593, Nanosensing: Materials and Devices, (29 December 2004); doi: 10.1117/12.571911
Show Author Affiliations
Jeong-Ho Park, Gwangju Institute of Science and Technology (South Korea)
Dong-Yu Kim, Gwangju Institute of Science and Technology (South Korea)

Published in SPIE Proceedings Vol. 5593:
Nanosensing: Materials and Devices
M. Saif Islam; Achyut K. Dutta, Editor(s)

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