Surface whispering-gallery mode

被引：20
|
作者：
Yang, J. J. [1 ]
Huang, M. [1 ]
Yu, J. [1 ]
Lan, Y. Z. [1 ]
机构：
[1] Yunnan Univ, Sch Informat Sci & Engn, Kunming 650091, Peoples R China
来源：
EPL | 2011年 / 96卷 / 05期
基金：
中国国家自然科学基金;
关键词：
METAMATERIALS; FREQUENCIES; SIMULATION; MOLECULES; SENSORS;
D O I：
10.1209/0295-5075/96/57003
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Metamaterials can exhibit electromagnetic characteristics beyond those found in nature. In this letter, we demonstrate that Surface Whispering-gallery mode (SWGM) can be generated by coating a microresonator with a layer of metamaterials. Different from WGM, whose waves are mostly confined within the microresonator, the SWGM propagate at the interface between the ambient substance and the metamaterials, rendering the microresonator much more sensitive to a slight change in surrounding medium. Such unusual characteristics, well explained by the guided wave theory and validated by full wave simulation, may lead to novel applications in optics. Copyright (C) EPLA, 2011
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页数：5
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