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Hybrid Plasmonic Whispering-gallery-mode Ring Resonator at NanoScales
Feifei Shi,Jie Zhou,Zhaoyu Zhang * #
Peking University, Shenzhen Graduate School, School of Electronic and Computer Engineering, Shenzhen, 518055
*Correspondence author
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Funding: 高等学校博士学科点专项科研基金,新教师类(No.20120001120108)
Opened online:14 April 2015
Accepted by: none
Citation: Feifei Shi,Jie Zhou,Zhaoyu Zhang.Hybrid Plasmonic Whispering-gallery-mode Ring Resonator at NanoScales[OL]. [14 April 2015] http://en.paper.edu.cn/en_releasepaper/content/4638049
 
 
a plasmonic whispering-gallery-mode cavity comprising of a semiconductor ring separated from a metal surface by a nanoscale dielectric gap is proposed and numerically investigated. The nanoscale ring resonator supports hybrid plasmonic modes with highly localized electromagnetic fields, featuring an ultra-small mode volume ~0.00129 μm3. The total quality factor is found to be limited by two mechanisms, the metal radiation loss and the absorption loss, and exhibits a tradeoff with the mode volume.
Keywords:whispering-gallery-mode; surface plasmon; ring resonator
 
 
 

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