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Hamiltonian Optics of Hyperbolic Polaritons in Nanogranules.

  • Author(s): Sun, Zhiyuan;
  • Gutiérrez-Rubio, Á;
  • Basov, DN;
  • Fogler, MM
  • et al.
Abstract

Semiclassical quantization rules and numerical calculations are applied to study polariton modes of materials whose permittivity tensor has principal values of opposite sign (so-called hyperbolic materials). The spectra of volume- and surface-confined polaritons are computed for spheroidal nanogranules of hexagonal boron nitride, a natural hyperbolic crystal. The field distribution created by polaritons excited by an external dipole source is predicted to exhibit raylike patterns due to classical periodic orbits. Near-field infrared imaging and Purcell-factor measurements are suggested to test these predictions.

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