Volume 18, Number 12, 1429-1434, DOI: 10.1134/S1054660X08120098

Near-field 3D mapping of spiral light structures formed by a polymer nanocylinder

A. M. Dubrovkin, A. A. Ezhov, S. A. Magnitskiy, D. V. Malakhov, V. I. Panov and S. V. Savinov

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Abstract

It is demonstrated that polymer nanocylinders can form spiral light structures. Spiral distributions of light intensity are observed at distances of 230–1100 nm above the nanocylinder with a diameter of 700 nm and a height of 1100 nm. The optical spirals are measured using a scanning near-field optical microscope that performs 3D scanning over planes when the nanocylinder is illuminated from the bottom with linearly polarized CW He-Ne-laser radiation at a wavelength of 632.8 nm. It is shown that the topology of the optical spirals significantly depends on the incident polarization.

PACS numbers  42.25.Fx - 07.79.Fc - 42.70.Jk - 81.16.Nd

Original Text © Astro, Ltd., 2008.

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