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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 14 — Jul. 4, 2011
  • pp: 13707–13713

Powerless tunable photonic crystal with bistable color and millisecond switching

Chia-Tsung Chan and J. Andrew Yeh  »View Author Affiliations

Optics Express, Vol. 19, Issue 14, pp. 13707-13713 (2011)

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This study demonstrated a tunable photonic crystal (PhC) with 70 nm-wide spectral tuning (535 nm to 605 nm) and 3 ms of response time. The tunable PhC is based on reciprocal capillary action of liquid in the nanoscale PhC voids. By wetting the porous silicon PhC with ethanol and water, the PhC can be bistably switched respectively between liquid-filled state (orange color) and vapor-filled state (yellow color). Owing to the energy barrier between the two wetting states, the tunable PhC can remain at either of the two states with no external power consumption.

© 2011 OSA

OCIS Codes
(350.4238) Other areas of optics : Nanophotonics and photonic crystals
(050.5298) Diffraction and gratings : Photonic crystals

ToC Category:
Photonic Crystals

Original Manuscript: May 4, 2011
Revised Manuscript: June 12, 2011
Manuscript Accepted: June 12, 2011
Published: June 30, 2011

Chia-Tsung Chan and J. Andrew Yeh, "Powerless tunable photonic crystal with bistable color and millisecond switching," Opt. Express 19, 13707-13713 (2011)

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