Plasmonic Slot Nano-Waveguides with Flattened Luneburg Lens Based Optical Couplers

被引：1
|
作者：
Arigong, Bayaner [1 ]
Zhou, Rongguo [1 ]
Kim, Hyoungsoo [1 ]
Lin, Yuankun [1 ]
Zhang, Hualiang [1 ]
机构：
[1] Univ N Texas, Dept Elect Engn, Denton, TX 76207 USA
来源：
INTEGRATED OPTICS: DEVICES, MATERIALS, AND TECHNOLOGIES XVIII | 2014年 / 8988卷
关键词：
Luneburg lens; gradient index; plasmonic slot nano-waveguide; GRADIENT-INDEX LENSES; BROAD-BAND; TRANSFORMATION-OPTICS;
D O I：
10.1117/12.2037860
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Gradient index (GRIN) structures have attracted great interests since their invention. Especially, the recent advance in the fields of transformation optics, plasmonics, and nanofabrication techniques has opened new directions for the applications of GRIN structures in nano-photonic devices. In this paper, we apply Luneburg lens and its transformed counterpart to realize efficient coupling to plasmonic nano-waveguides. We first briefly present the general structures of Luneburg lens and generalized Luneburg lens, as well as the design process of flattened Luneburg lens applying quasi-conformal mapping techniques. After that, we study the performance of these lenses for coupling electromagnetic signals to nano-waveguides (the metal-insulator-metal (MIM) nano-waveguide), and different schemes are investigated.
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页数：6
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