中国物理B ›› 2013, Vol. 22 ›› Issue (11): 117806-117806.doi: 10.1088/1674-1056/22/11/117806

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Polarization characteristics of chiral photonic crystal fibers with an elliptical hollow core

李社, 李俊庆, 曹雨生   

  1. Department of Physics, Harbin Institute of Technology, Harbin 150001, China
  • 收稿日期:2013-04-24 修回日期:2013-08-03 出版日期:2013-09-28 发布日期:2013-09-28
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 60977032).

Polarization characteristics of chiral photonic crystal fibers with an elliptical hollow core

Li She (李社), Li Jun-Qing (李俊庆), Cao Yu-Sheng (曹雨生)   

  1. Department of Physics, Harbin Institute of Technology, Harbin 150001, China
  • Received:2013-04-24 Revised:2013-08-03 Online:2013-09-28 Published:2013-09-28
  • Contact: Li Jun-Qing E-mail:jqli@hit.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 60977032).

摘要: The theoretical study of dielectric-chiral photonic crystal fiber (PCF) with an elliptical hollow core is presented. The band structure of chiral photonic crystal (PhC) is calculated by using a modified plane-wave expansion (PWE) method. By examining the out-of-plane photonic bandgaps (PBGs) of chiral PhC, a kind of chiral PCF with a hollow core is designed and their eigenstates are calculated. The distributions of mode field and polarization state are demonstrated, and how the structural asymmetry of the core together with the chirality in the background affects the modal polarization is discussed. The dependences of birefringence on chirality for different ellipticities of core are investigated.

关键词: chiral medium, photonic crystal fiber with elliptical hollow core, polarization, birefringence

Abstract: The theoretical study of dielectric-chiral photonic crystal fiber (PCF) with an elliptical hollow core is presented. The band structure of chiral photonic crystal (PhC) is calculated by using a modified plane-wave expansion (PWE) method. By examining the out-of-plane photonic bandgaps (PBGs) of chiral PhC, a kind of chiral PCF with a hollow core is designed and their eigenstates are calculated. The distributions of mode field and polarization state are demonstrated, and how the structural asymmetry of the core together with the chirality in the background affects the modal polarization is discussed. The dependences of birefringence on chirality for different ellipticities of core are investigated.

Key words: chiral medium, photonic crystal fiber with elliptical hollow core, polarization, birefringence

中图分类号:  (Multilayers; superlattices; photonic structures; metamaterials)

  • 78.67.Pt
42.81.-i (Fiber optics) 42.25.Lc (Birefringence)