Abstract
The spatial distribution of the electromagnetic field in a two-dimensional photonic crystal with a lattice defect is investigated. It is shown that in such a structure the field can be localized in a region smaller than one wavelength in size. The dependence of the spectrum of defect modes on the parameters of a two-dimensional photonic crystal is investigated. The light field at the exit of the photonic crystal possesses properties of a nonradiative mode, making it possible to achieve spatial resolution in the near-field much higher than the radiation wavelength. The possibilities of using this phenomenon in optical near-field microscopy to produce optical memory devices and to increase the efficiency of nonlinear optical interactions are discussed.
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Pis’ma Zh. Éksp. Teor. Fiz. 70, No. 5, 323–328 (10 September 1999)
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Zheltikov, A.M., Magnitskii, S.A. & Tarasishin, A.V. Localization and channeling of light in defect modes of two-dimensional photonic crystals. Jetp Lett. 70, 323–328 (1999). https://doi.org/10.1134/1.568174
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DOI: https://doi.org/10.1134/1.568174