Continuous amplitude control of second harmonic waves from the metasurfaces through interference paths

Liu，Xuan1,2; Tang，Yutao1; Li，Yang1; Hu，Zixian1; Deng，Junhong1,3; Li，Guixin1,3,4

2022-09-12

10.1063/5.0105386

APPLIED PHYSICS LETTERS   Impact Factor & Quartile

0003-6951

1077-3118

Nonlinear plasmonic metasurfaces represent a promising platform for generating and controlling the multiple degrees of freedom of harmonic waves at the subwavelength scale. Among various functionalities, the amplitude control of the harmonic waves is usually achieved by varying the fundamental frequency and the pumping power. However, these kinds of methods lack the ability to control the energy distributions of the nonlinear waves at different diffraction orders. Here, we report the continuous intensity control of the harmonic waves from the plasmonic metasurfaces through interference paths. The metasurfaces consist of geometric phase controlled gold meta-atoms with threefold rotational symmetry. By controlling the relative phase of two neighboring metasurface paths, the intensity of the diffracted second harmonic waves can be artificially modulated. Our findings suggest that the conventional interference technique represents a powerful route for controlling the radiation of the nonlinear waves from sub-wavelength meta-atoms and may have great applications in developing ultra-compact nonlinear optical sources.

SCI

English

NI Journal Papers

First ; Corresponding

National Natural Science Foundation of China["91950114","12161141010"] ; Zhangjiang Laboratory, Guangdong Provincial Innovation and Entrepreneurship Project[2017ZT07C071] ; Natural Science Foundation of Shenzhen Innovation Commission[JCYJ20200109140808088] ; Guangdong Provincial Key Laboratory Program[2021B1212040001] ; China Postdoctoral Science Foundation[2020M680271]

Physics

Physics, Applied

WOS:000859384700007

AIP Publishing

PHYSICS

2-s2.0-85138788820

Scopus

1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Institute of Laser Engineering,Faculty of Materials and Manufacturing,Beijing University of Technology,Beijing,100124,China
3.Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
4.Guangdong Provincial Key Laboratory of Functional Oxide Materials and Devices,Southern University of Science and Technology,Shenzhen,518055,China

Liu，Xuan,Tang，Yutao,Li，Yang,et al. Continuous amplitude control of second harmonic waves from the metasurfaces through interference paths[J]. APPLIED PHYSICS LETTERS,2022,121(11).

Liu，Xuan,Tang，Yutao,Li，Yang,Hu，Zixian,Deng，Junhong,&Li，Guixin.(2022).Continuous amplitude control of second harmonic waves from the metasurfaces through interference paths.APPLIED PHYSICS LETTERS,121(11).

Liu，Xuan,et al."Continuous amplitude control of second harmonic waves from the metasurfaces through interference paths".APPLIED PHYSICS LETTERS 121.11(2022).