Optical orbital angular momentum conservation during the transfer process from plasmonic vortex lens to light

被引：18
作者：
Yu, Haohai [1 ,2 ]
Zhang, Huaijin [1 ,2 ]
Wang, Yicheng [1 ,2 ]
Han, Shuo [1 ,2 ]
Yang, Haifang [3 ]
Xu, Xiangang [1 ,2 ]
Wang, Zhengping [1 ,2 ]
Petrov, V. [4 ]
Wang, Jiyang [1 ,2 ]
机构：
[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
[2] Shandong Univ, Inst Crystal Mat, Jinan 250100, Peoples R China
[3] Chinese Acad Sci, Inst Phys, Lab Microfabricat, Beijing 100190, Peoples R China
[4] Max Born Inst Nonlinear Opt & Ultrafast Spect, D-12489 Berlin, Germany
来源：
SCIENTIFIC REPORTS | 2013年 / 3卷
基金：
中国国家自然科学基金;
关键词：
TRANSMISSION; GENERATION;
D O I：
10.1038/srep03191
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
We demonstrate the optical orbital angular momentum conservation during the transfer process from subwavelength plasmonic vortex lens (PVLs) to light and the generating process of surface plasmon polaritons (SPPs). Illuminating plasmonic vortex lenses with beams carrying optical orbital angular momentum, the SP vortices with orbital angular momentum were generated and inherit the optical angular momentum of light beams and PVLs. The angular momentum of twisting SP electromagnetic field is tunable by the twisted metal/dielectric interfaces of PVLs and angular momentum of illuminating singular light. This work may open the door for several possible applications of SP vortices in subwavelength region.
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页数：5
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