中国物理B ›› 2020, Vol. 29 ›› Issue (5): 57802-057802.doi: 10.1088/1674-1056/ab8898

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇    下一篇

Extinction mechanisms of hyperbolic h-BN nanodisk

Runkun Chen(陈闰堃), Jianing Chen(陈佳宁)   

  1. 1 Institute of Physics, Chinese Academy of Sciences and Beijing National Laboratory for Condensed Matter Physics, Beijing 100190, China;
    2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Songshan Lake Materials Laboratory, Dongguan 523808, China
  • 收稿日期:2020-03-07 修回日期:2020-04-03 出版日期:2020-05-05 发布日期:2020-05-05
  • 通讯作者: Jianing Chen E-mail:jnchen@iphy.ac.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant No. 2016YFA0203500), the National Natural Science Foundation of China (Grant No. 11874407), and Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB 30000000).

Extinction mechanisms of hyperbolic h-BN nanodisk

Runkun Chen(陈闰堃)1,2, Jianing Chen(陈佳宁)1,2,3   

  1. 1 Institute of Physics, Chinese Academy of Sciences and Beijing National Laboratory for Condensed Matter Physics, Beijing 100190, China;
    2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Songshan Lake Materials Laboratory, Dongguan 523808, China
  • Received:2020-03-07 Revised:2020-04-03 Online:2020-05-05 Published:2020-05-05
  • Contact: Jianing Chen E-mail:jnchen@iphy.ac.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant No. 2016YFA0203500), the National Natural Science Foundation of China (Grant No. 11874407), and Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB 30000000).

摘要: We applied the finite element method to calculate the extinction spectrum of single hyperbolic hexagonal boron nitride (h-BN) nanodisk. We show that the hyperbolic h-BN nanodisk exhibits two extinction mechanisms in the mid-infrared region. The volume confined phonon polaritons resonances of the nanodisk give rise to a series of weak extinction peaks. The localized surface phonon polaritons lead to a robust dipolar extinction, and the extinction peak position is tunable by varying the size of the h-BN nanodisk. These findings reveal the mechanisms of the interaction between light and resonant h-BN nanodisk, which are essential for h-BN related opto-electromagnetic applications.

关键词: extinction spectra, hexagonal boron nitride (h-BN), phonon polaritons, finite element method

Abstract: We applied the finite element method to calculate the extinction spectrum of single hyperbolic hexagonal boron nitride (h-BN) nanodisk. We show that the hyperbolic h-BN nanodisk exhibits two extinction mechanisms in the mid-infrared region. The volume confined phonon polaritons resonances of the nanodisk give rise to a series of weak extinction peaks. The localized surface phonon polaritons lead to a robust dipolar extinction, and the extinction peak position is tunable by varying the size of the h-BN nanodisk. These findings reveal the mechanisms of the interaction between light and resonant h-BN nanodisk, which are essential for h-BN related opto-electromagnetic applications.

Key words: extinction spectra, hexagonal boron nitride (h-BN), phonon polaritons, finite element method

中图分类号:  (Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)

  • 78.67.-n
71.35.Cc (Intrinsic properties of excitons; optical absorption spectra) 71.36.+c (Polaritons (including photon-phonon and photon-magnon interactions)) 47.11.Fg (Finite element methods)