Hamiltonian Optics of Hyperbolic Polaritons in Nanogranules

被引：35

作者：

Sun, Zhiyuan ^{[1
]}

Gutierrez-Rubio, A. ^{[2
]}

Basov, D. N. ^{[1
]}

Fogler, M. M. ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept Phys, 9500 Gilman Dr, La Jolla, CA 92093 USA

[2] CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid, Spain

来源：

NANO LETTERS | 2015年 / 15卷 / 07期

基金：

欧洲研究理事会;

关键词：

Hyperbolic materials; boron nitride; polariton; nanoresonator; Purcell's factor; semiclassical quantization; PHONON POLARITONS; SURFACE-WAVES; HYPERLENS;

D O I：

10.1021/acs.nanolett.5b00814

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：4455 / 4460

页数：6

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