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Broadband spin Hall effect of light in single nanoapertures
Luo, Xian-Gang; Pu, Ming-Bo; Li, Xiong; Ma, Xiao-Liang
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AbstractWith properties not previously available, optical metamaterials and metasurfaces have shown their great potential in the precise control of light waves at the nanoscale. However, the use of current metamaterials and metasurfaces is limited by the collective response of the meta-atoms/molecules, which means that a single element cannot provide the functionalities required by most applications. Here, we demonstrate for the first time that a single achiral nanoaperture can be utilized as a meta-macromolecule to achieve giant angular spin Hall effect of light. By controlling the spin-related momenta, we show that these nanoapertures can enable full control of the phase gradient at a deep-subwavelength level, thus forming unique building blocks for optical metasurfaces. As a proof-of-concept demonstration, a miniaturized Bessel-like beam generator and flat lens are designed and experimentally characterized. The results presented here may open a door for the development of meta-macromolecule-based metasurfaces for integrated optical systems and nanophotonics.
Keywordgeometric phase metasurface nanoaperture spin Hall effect of light
Document Type期刊论文
Affiliation1.[Luo, Xian-Gang
2.Pu, Ming-Bo
3.Li, Xiong
4.Chinese Acad Sci, State Key Lab Opt Technol Nanofabricat & Microeng, Inst Opt & Elect, Chengdu 610209, Peoples R China
Recommended Citation
GB/T 7714
Luo, Xian-Gang,Pu, Ming-Bo,Li, Xiong,et al. Broadband spin Hall effect of light in single nanoapertures[J]. LIGHT-SCIENCE & APPLICATIONS,2017,6.
APA Luo, Xian-Gang,Pu, Ming-Bo,Li, Xiong,&Ma, Xiao-Liang.(2017).Broadband spin Hall effect of light in single nanoapertures.LIGHT-SCIENCE & APPLICATIONS,6.
MLA Luo, Xian-Gang,et al."Broadband spin Hall effect of light in single nanoapertures".LIGHT-SCIENCE & APPLICATIONS 6(2017).
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