Spin/Orbital Angular Momentum conversion at a nano scale

被引：0
|
作者：
Sun, Jingbo [1 ,2 ]
Litchinitser, Natalia M. [1 ]
机构：
[1] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27701 USA
[2] Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100084, Peoples R China
来源：
OPTICAL MANIPULATION AND STRUCTURED MATERIALS CONFERENCE 2020 | 2020年 / 11522卷
关键词：
Spin Angular Momentum; Orbital Angular Momentum; Metamaterial; Hyperlens; Optical vortex; OPTICAL HYPERLENS;
D O I：
10.1117/12.2573521
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, we perform an in-depth theoretical study on the Spin/Orbital Angular Momentum conversion at the nanoscale when a radially polarized vortex beam is ideally focused by a so called-hyperlens, which can support the propagation of the evanescent wave can break the diffraction limit. Radially polarized optical vortex beam was used as an input and from the output side, a beam with circular polarization was observed from the hyperlens, which enabled a unique Spin/Orbital Angular Momentum conversion at the extremely tight focal spot of the hyperlens.
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页数：2
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