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Whispering Gallery Modes in Nanosized Dielectric Resonators with Hexagonal Cross Section

Thomas Nobis, Evgeni M. Kaidashev, Andreas Rahm, Michael Lorenz, and Marius Grundmann
Phys. Rev. Lett. 93, 103903 – Published 3 September 2004
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Abstract

The size dependence of whispering gallery modes in dielectric resonators with hexagonal cross section has been observed within the visible spectral range for cavity diameters comparable to the light wavelength. As a model system single, tapered, high aspect ratio zinc oxide nanoneedles were analyzed. They enable systematic investigations as a function of the resonator diameter down to the nanometer regime. A simple plane wave interference model without free parameter describes the spectral positions and the linewidths of the modes in good agreement with the experiment.

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  • Received 12 May 2004

DOI:https://doi.org/10.1103/PhysRevLett.93.103903

©2004 American Physical Society

Authors & Affiliations

Thomas Nobis*, Evgeni M. Kaidashev, Andreas Rahm, Michael Lorenz, and Marius Grundmann

  • Fakultät für Physik und Geowissenschaften, Institut für Experimentelle Physik II, Universität Leipzig, Linnéstraße 5, D-04103 Leipzig, Germany

  • *Corresponding author. Electronic address: nobis@physik.uni-leipzig.de
  • On leave from Rostov-on-Don State University, Mechanics and Applied Mathematics Research Institute, 344090 Rostov-on-Don, Russia.

See Also

Needles Capture Whispers of Light

Chelsea Wald
Phys. Rev. Focus 14, 10 (2004)

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Vol. 93, Iss. 10 — 3 September 2004

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