负折射率及零折射率光纤的光学特性

J4 ›› 2010, Vol. 27 ›› Issue (5): 637-640.

• 纤维与波导光学 • 上一篇

负折射率及零折射率光纤的光学特性

石猛, 黄文, 张国平

华中师范大学物理学院，湖北武汉 430079

收稿日期:2009-12-03 修回日期:2010-03-30 出版日期:2010-09-28 发布日期:2010-08-31
通讯作者: 张国平(1969-)，华中师范大学物理科学与技术学院教授，研究方向为光电子技术与信息处理。 E-mail:gpzhang@phy.ccnu.edu.cn
作者简介:石猛（1987-），华中师范大学物理科学与技术学院，研究方向为光电子技术与信息处理。

Optical characteristics of fibers with negative refractive and zero refractive index

SHI Meng, HUANG Wen, ZHANG Guoping

College of Physical Science and Technology, Huazhong Normal University,Wuhan 430079,China

Received:2009-12-03 Revised:2010-03-30 Published:2010-09-28 Online:2010-08-31

摘要/Abstract

摘要：

研究了芯层折射率为正，包层折射率为负的光纤导模光学特性，通过色散曲线分析比较了与常规光纤的不同，表现为低阶的简并的模式更少，单模存在的区域更多。进而分析了当包层折射率趋于零时的光学特性，发现与前两种光纤的光学特性都不同。分析发现当包层的介电常数和磁导率有一个为零时，在较小的区域各自出现了一条单模，与常规光纤的HE11模特性有很大不同，其色散曲线偏离方式与常规光纤相反，且出现了无模式存在的区域。

关键词: 纤维与波导光学, 负折射率, 零折射率, 单模

Abstract:

The optical characteristics of guided modes in a fiber formed by a core with usual refractive index and a negative refractive index cladding are studied, the difference compared with normal fiber is analyzed through the dispersion curves showing less degenerate modes and larger single-mode area.When the cladding refractive index tends to zero ,the optical characteristics are different from the former two fibers. A single-mode in the smaller region V is found ,when the permittivity or permeability of the cladding is zero.It is quite different from the mode HE11 in a normal fiber, its dispersive curve has an opposite tendency, and there are some areas where no modes could exist .

Key words: fiber and waveguide optics, negative refractive index, zero refractive index, single mode

石猛黄文张国平. 负折射率及零折射率光纤的光学特性[J]. J4, 2010, 27(5): 637-640.

SHI Meng HUANG Wen ZHANG Guoping . Optical characteristics of fibers with negative refractive and zero refractive index[J]. J4, 2010, 27(5): 637-640.

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负折射率及零折射率光纤的光学特性

Optical characteristics of fibers with negative refractive and zero refractive index

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