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)†
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
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.
Received: 30 June 2008
Revised: 29 October 2008
Accepted manuscript online:
PACS:
78.67.-n
(Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)
Fund: 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).
Cite this article:
Hu Xiao-Hong(胡晓鸿), Zhao Wei(赵卫), Gong Yong-Kang(宫永康), Wang Lei-Ran(王擂然), Lu Ke-Qing(卢克清), and Liu Xue-Ming(刘雪明) Mode field diameter and nonlinear properties of air-core nanowires 2009 Chin. Phys. B 18 3183
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