Nonlinear Metasurface for Simultaneous Control of Spin and Orbital Angular Momentum in Second Harmonic Generation

Li, Guixin1,2; Wu, Lin3; Li, King F.1; Chen, Shumei10; Schlickriede, Christian5; Xu, Zhengji3; Huang, Siya1; Li, Wendi1,6; Liu, Yanjun7; Pun, Edwin Y. B.8,9; Zentgraf, Thomas5; Cheah, Kok W.4; Luo, Yu3; Zhang, Shuang10

2017-12

10.1021/acs.nanolett.7b04451

NANO LETTERS   影响因子和分区

1530-6984

1530-6992

The spin and orbital angular momentum (SAM and OAM) of light is providing a new gateway toward high capacity and robust optical communications. While the generation of light with angular momentum is well studied in linear optics, its further integration into nonlinear optical devices will open new avenues for increasing the capacity of optical communications through additional information channels at new frequencies. However, it has been challenging to manipulate the both SAM and OAM of nonlinear signals in harmonic generation processes with conventional nonlinear materials. Here, we report the generation of spin-controlled OAM of light in harmonic generations by using ultrathin photonic metasurfaces. The spin manipulation of OAM mode of harmonic waves is experimentally verified by using second harmonic generation (SHG) from gold meta-atom with 3-fold rotational symmetry. By introducing nonlinear phase singularity into the metasurface devices, we successfully generate and measure the topological charges of spin-controlled OAM mode of SHG through an on-chip metasurface interferometer. The nonlinear photonic metasurface proposed in this work not only opens new avenues for manipulating the OAM of nonlinear optical signals but also benefits the understanding of the nonlinear spin orbit interaction of light in nanoscale devices.

Metasurface plasmonics spin angular momentum orbital angular momentum second harmonic generation optical vortex

SCI ; EI

英语

NI期刊

第一 ; 通讯

Marie Curie Individual Fellowship[H2020-MSCA-IF-703803-Non-linearMeta]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000418393300112

AMER CHEMICAL SOC

20175104558077

Angular momentum ; Harmonic analysis ; Harmonic generation ; Light ; Optical communication ; Plasmonics

Optical Communication Systems:717.1 ; Light/Optics:741.1 ; Nonlinear Optics:741.1.1 ; Numerical Methods:921.6

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
3.Nanyang Technol Univ, Sch Elect & Elect Engn, Coll Engn, Singapore 639798, Singapore
4.Hong Kong Baptist Univ, Dept Phys, Kowloon Tong, Hong Kong, Peoples R China
5.Univ Paderborn, Dept Phys, Warburger Str 100, D-33098 Paderborn, Germany
6.Univ Hong Kong, Dept Mech Engn, Pokfulam, Hong Kong, Peoples R China
7.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
8.City Univ Hong Kong, Dept Elect Engn, 83 Tat Chee Ave, Hong Kong, Hong Kong, Peoples R China
9.City Univ Hong Kong, State Key Lab Millimeter Waves, 83 Tat Chee Ave, Hong Kong, Hong Kong, Peoples R China
10.Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England

Li, Guixin,Wu, Lin,Li, King F.,et al. Nonlinear Metasurface for Simultaneous Control of Spin and Orbital Angular Momentum in Second Harmonic Generation[J]. NANO LETTERS,2017,17(12):7974-7979.

Li, Guixin.,Wu, Lin.,Li, King F..,Chen, Shumei.,Schlickriede, Christian.,...&Zhang, Shuang.(2017).Nonlinear Metasurface for Simultaneous Control of Spin and Orbital Angular Momentum in Second Harmonic Generation.NANO LETTERS,17(12),7974-7979.

Li, Guixin,et al."Nonlinear Metasurface for Simultaneous Control of Spin and Orbital Angular Momentum in Second Harmonic Generation".NANO LETTERS 17.12(2017):7974-7979.