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Near-field visualization of light confinement in a photonic crystal microresonator
Patrick Kramper1, Maria Kafesaki, Costas M Soukoulis
1Centre Nationale de la Recherche Scientifique, Laboratoire de Photonique et de Nanostructures, Route de Nozay, 91460 Marcoussis, France.
Optics Letters
|January 28, 2004
Abstract:
By using scanning near-field optical microscopy, we directly map the subwavelength confinement of light around a point defect in a two-dimensional photonic crystal microresonator. Comparison of our results with the outcome of three-dimensional finite-difference time domain calculations allows us to identify small imperfections in the structure that result in the spatial modification of the intensity distribution.