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Nanoscale high-intensity light focusing with pure dielectric nonspherical scatterer

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Abstract

Light scattering from nonspherically symmetric pure dielectric structures is examined. From the finite element full-wave analysis, it is found that teardrop-shaped scatterers can focus visible light to a 10nm spot with an intensity enhancement 105 when the incident light is radially polarized.

© 2014 Optical Society of America

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