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Liège, Belgium

Bogdanowicz J.,Catholic University of Leuven | Bogdanowicz J.,IMEC | Gilbert M.,IMEC | Innocenti N.,IMEC | And 5 more authors.
Optics Express | Year: 2013

The problem of the absorption of light by a nanoscale dielectric cone is discussed. A simplified solution based on the analytical Mie theory of scattering and absorption by cylindrical objects is proposed and supported by the experimental observation of sharply localized holes in conical silicon tips after high-fluence irradiation. This study reveals that light couples with tapered objects dominantly at specific locations, where the local radius corresponds to one of the resonant radii of a cylindrical object, as predicted by Mie theory. © 2013 Optical Society of America.

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