Focusing of electromagnetic fields in high-Q hybrid wedge plasmon polariton microresonator

被引：7

作者：

Lu, Qijing ^{[1
,2
,3
]}

Shu, Fangjie ^{[4
]}

Chen, Daru ^{[1
,2
,3
]}

Wu, Genzhu ^{[1
,2
,3
]}

Zhou, Pei ^{[1
,2
,3
]}

机构：

[1] Zhejiang Normal Univ, Inst Informat Opt, Jinhua 321004, Peoples R China

[2] Zhejiang Normal Univ, Joint Res Lab Opt, Hangzhou 310058, Zhejiang, Peoples R China

[3] Zhejiang Univ, Hangzhou 310058, Zhejiang, Peoples R China

[4] Shangqiu Normal Univ, Dept Phys, Shangqiu 476000, Peoples R China

来源：

APPLIED OPTICS | 2012年 / 51卷 / 29期

基金：

中国国家自然科学基金;

关键词：

TRIANGULAR METAL WEDGES; WAVE-GUIDE; SUBWAVELENGTH;

D O I：

10.1364/AO.51.006968

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We theoretically propose a hybrid microresonator consisting of a metallic wedge ring and a silica ring and investigate the existing whispering-gallery-like hybrid wedge plasmon polariton modes. These tightly confined hybrid plasmon modes are found to possess ultrasmall mode volumes while maintaining relatively high quality factors simultaneously at room temperature; that is, high values of Q/V are obtained. For example, a Purcell factor of 70 is achieved at the telecommunication wavelength of 1550 nm. This plasmon microresonator shows great potential in low-threshold plasmonic microlasers and cavity quantum electrodynamics. (C) 2012 Optical Society of America

引用

页码：6968 / 6973

页数：6

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