中国物理B ›› 2009, Vol. 18 ›› Issue (8): 3183-3188.doi: 10.1088/1674-1056/18/8/015

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Mode field diameter and nonlinear properties of air-core nanowires

赵卫1, 宫永康1, 王擂然1, 卢克清1, 刘雪明1, 胡晓鸿2   

  1. (1)State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; (2)State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China ;Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2008-06-30 修回日期:2008-10-29 出版日期:2009-08-20 发布日期:2009-08-20
  • 基金资助:
    Project supported by the ``Hundreds of Talents Programs'' of the Chinese Academy of Sciences and by the National Natural Science Foundation of China (Grant Nos 10874239, 10604066 and 60537060).

Mode field diameter and nonlinear properties of air-core nanowires

Hu Xiao-Hong(胡晓鸿)a)b), Zhao Wei(赵卫)a), Gong Yong-Kang(宫永康)a), Wang Lei-Ran(王擂然)a), Lu Ke-Qing(卢克清)a), and Liu Xue-Ming(刘雪明)a)†   

  1. a State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China; b Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
  • Received:2008-06-30 Revised:2008-10-29 Online:2009-08-20 Published:2009-08-20
  • Supported by:
    Project supported by the ``Hundreds of Talents Programs'' of the Chinese Academy of Sciences and by the National Natural Science Foundation of China (Grant Nos 10874239, 10604066 and 60537060).

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摘要： Exact solutions of Maxwell's equations describing the lightwave through 3-layer-structured cylindrical waveguide are obtained and the mode field diameter and nonlinear coefficient of air-core nanowires (ACNWs) are numerically calculated. The simulation results show that ACNWs offer some unique optical properties, such as tight field confining ability and extremely high nonlinearity. At a certain wavelength and air core radius, we optimize the waveguide design to maximize the nonlinear coefficient and minimize the mode field diameter. Our results show that the ACNWs may be powerful potential tools for novel micro-photonic devices in the near future.

Abstract: Exact solutions of Maxwell's equations describing the lightwave through 3-layer-structured cylindrical waveguide are obtained and the mode field diameter and nonlinear coefficient of air-core nanowires (ACNWs) are numerically calculated. The simulation results show that ACNWs offer some unique optical properties, such as tight field confining ability and extremely high nonlinearity. At a certain wavelength and air core radius, we optimize the waveguide design to maximize the nonlinear coefficient and minimize the mode field diameter. Our results show that the ACNWs may be powerful potential tools for novel micro-photonic devices in the near future.

Key words: waveguides, nanowires, numerical calculation , fiber optics

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

  • 78.67.-n
03.50.De (Classical electromagnetism, Maxwell equations) 42.65.Wi (Nonlinear waveguides) 42.82.Et (Waveguides, couplers, and arrays)