Static Envelope Patterns in Composite Resonances Generated by Level Crossing in Optical Toroidal Microcavities

Tal Carmon, Harald G. L. Schwefel, Lan Yang, Mark Oxborrow, A. Douglas Stone, and Kerry J. Vahala
Phys. Rev. Lett. 100, 103905 – Published 13 March 2008

Abstract

We study level crossing in the optical whispering-gallery (WG) modes by using toroidal microcavities. Experimentally, we image the stationary envelope patterns of the composite optical modes that arise when WG modes of different wavelengths coincide in frequency. Numerically, we calculate crossings of levels that correspond with the observed degenerate modes, where our method takes into account the not perfectly transverse nature of their field polarizations. In addition, we analyze anticrossing with a large avoidance gap between modes of the same azimuthal number.

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  • Received 21 August 2007

DOI:https://doi.org/10.1103/PhysRevLett.100.103905

©2008 American Physical Society

Authors & Affiliations

Tal Carmon1,*, Harald G. L. Schwefel2, Lan Yang3, Mark Oxborrow4, A. Douglas Stone5, and Kerry J. Vahala6

  • 1Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109, USA
  • 2, Max Planck Research Group, Institute for Optics, University of Erlangen–Nuremberg, 91058 Erlangen, Germany
  • 3Department of Electrical and Systems Engineering, Washington University, St. Louis, Missouri 63130, USA
  • 4National Physical Laboratory, Teddington, Middlesex TW11 0LW, United Kingdom
  • 5Yale University, Department of Applied Physics, New Haven, Connecticut 06520, USA
  • 6Applied Physics Department, Caltech, Pasadena, California 91125 USA

  • *tcarmon@umich.edu; http://www.eecs.umich.edu/~tcarmon/

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Vol. 100, Iss. 10 — 14 March 2008

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