Guided modes and light trapping in the negative-refractive-index slab waveguides

被引：1

作者：

Kim, Kyoung-Youm ^{[1
]}

Lee, Il-Min ^{[2
]}

Park, Junghyun ^{[2
]}

Kang, Minsu ^{[2
]}

Lee, Byoungho ^{[2
]}

机构：

[1] Sejong Univ, Dept Opt Engn, Seoul 143747, South Korea

[2] Seoul Natl Univ, Sch Elect Engn, Natl Creat Res Ctr Act Plasmon Applicat Syst, Inter Univ Semicond Res Ctr, Seoul 151, South Korea

来源：

PHOTONIC FIBER AND CRYSTAL DEVICES: ADVANCES IN MATERIALS AND INNOVATIONS IN DEVICE APPLICATIONS II | 2008年 / 7056卷

关键词：

Waveguide; metamaterial; light trapping;

D O I：

10.1117/12.793541

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We derive mathematical criteria for a pair of guided modes which have the same parity, mutually parallel wave vectors along the guiding direction of the waveguide, but opposite directions of optical power flow in a negative-index slab waveguide using a graphical method. It is also proven that the so-called light trap mode corresponds to the degenerate mode of this pair. We also propose a waveguide structure in which guided light waves can be trapped via tunneling through thin metamaterial clad layers. This trap is temporary since the trapped light tunnels out completely after a short time.

引用

页数：10

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