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Applied Optics

Applied Optics


  • Vol. 41, Iss. 26 — Sep. 10, 2002
  • pp: 5574–5579

Tunable photonic crystal microcavities

David M. Pustai, Ahmed Sharkawy, Shouyuan Shi, and Dennis W. Prather  »View Author Affiliations

Applied Optics, Vol. 41, Issue 26, pp. 5574-5579 (2002)

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We present a method for tuning a photonic crystal microcavity by modulating the index of refraction of the lattice sites within and surrounding the microcavity. The index of refraction can be actively modulated after infiltrating anisotropic liquid crystals into a two-dimensional photonic crystal lattice of air cylinders in silicon. We analyze the Q-factors and resonance frequencies of a tunable photonic crystal microcavity by considering various methods of index modulation. These tunable cavities are incorporated in a channel drop filter to demonstrate their enhancement of wavelength division multiplexing photonic crystal applications.

© 2002 Optical Society of America

OCIS Codes
(230.0230) Optical devices : Optical devices
(230.3720) Optical devices : Liquid-crystal devices
(230.5750) Optical devices : Resonators
(230.7370) Optical devices : Waveguides
(250.5300) Optoelectronics : Photonic integrated circuits

Original Manuscript: January 31, 2002
Revised Manuscript: May 17, 2002
Published: September 10, 2002

David M. Pustai, Ahmed Sharkawy, Shouyuan Shi, and Dennis W. Prather, "Tunable photonic crystal microcavities," Appl. Opt. 41, 5574-5579 (2002)

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