Abstract

Wavelength-sized point defect cavities coupled to access waveguides are reported for deeply etched $\mathrm{In}\mathrm{P}∕\mathrm{In}\mathrm{Ga}\mathrm{As}\mathrm{P}∕\mathrm{In}\mathrm{P}$ two-dimensional photonic crystals. The observed quality factor of 60 is comparable to those found for one-row defect Fabry–Perot cavities and for simple point defect cavities in membranes. The quality factor was changed by varying the number of rows of holes. Upon infiltration of the holes with liquid crystal, frequency tuning was demonstrated.

© 2009 Optical Society of America

Wavelength tuning of planar photonic crystals by local processing of individual holes

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