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Controlling the Resonance of a Photonic Crystal Microcavity by a Near-Field Probe

Koenderink, A Femius; Kafesaki, Maria; Buchler, Benjamin; Sandoghar, Vahid


We demonstrate theoretically that the resonance frequencies of high-Q microcavities in two-dimensional photonic crystal membranes can be tuned over a wide range by introducing a subwavelength dielectric tip into the cavity mode. Three-dimensional finite-difference time-domain simulations show that by varying the lateral and vertical positions of the tip, it is possible to tune the resonator frequency without lowering the quality factor. Excellent agreement with a perturbative theory is...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.95.153904


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