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Opt Lett. 2009 Jul 15;34(14):2207-9. doi: 10.1364/OL.34.002207.

Wavelength-sized, tunable nanocavity in deeply etched InP/InGaAsP/InP photonic crystals.

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  • 1COBRA Research Institute and Center for NanoMaterials, Eindhoven University of Technology, Eindhoven, The Netherlands. h.h.j.e.kicken@tue.nl


Wavelength-sized point defect cavities coupled to access waveguides are reported for deeply etched InP/InGaAsP/InP 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.

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