Hamiltonian Optics of Hyperbolic Polaritons in Nanogranules.
- Author(s): Sun, Zhiyuan
- Gutiérrez-Rubio, Á
- Basov, DN
- Fogler, MM
- et al.
Published Web Location
https://doi.org/10.1021/acs.nanolett.5b00814Abstract
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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