Anisotropic metamaterial optical fibers

被引：32

作者：

Pratap, Dheeraj ^{[1
]}

Ramakrishna, S. Anantha ^{[1
]}

Pollock, Justin G. ^{[2
]}

Iyer, Ashwin K. ^{[2
]}

机构：

[1] Indian Inst Technol, Dept Phys, Kanpur 208016, Uttar Pradesh, India

[2] Univ Alberta Edmonton, Dept Elect & Comp Engn, Edmonton, AB T6G 2V4, Canada

来源：

OPTICS EXPRESS | 2015年 / 23卷 / 07期

基金：

加拿大自然科学与工程研究理事会;

关键词：

BESSEL-FUNCTIONS; HYPERLENS; EQUATIONS; MODES;

D O I：

10.1364/OE.23.009074

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Internal physical structure can drastically modify the properties of waveguides: photonic crystal fibers are able to confine light inside a hollow air core by Bragg scattering from a periodic array of holes, while metamaterial loaded waveguides for microwaves can support propagation at frequencies well below cutoff. Anisotropic metamaterials assembled into cylindrically symmetric geometries constitute light-guiding structures that support new kinds of exotic modes. A microtube of anodized nanoporous alumina, with nanopores radially emanating from the inner wall to the outer surface, is a manifestation of such an anisotropic metamaterial optical fiber. The nanopores, when filled with a plasmonic metal such as silver or gold, greatly increase the electromagnetic anisotropy. The modal solutions in such anisotropic circular waveguides can be uncommon Bessel functions with imaginary orders. (C) 2015 Optical Society of America

引用

页码：9074 / 9085

页数：12

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