Third harmonic generation from the gold/amorphous silicon hybrid metasurface

Li, Yang1,2; Zhang, Guanqing2; Tang, Yutao2; Zhang, Xuecai2; Cai, Wenfeng3; Liu, Yanjun3; Cao, Tun1; Li, Guixin2

2022-04-01

10.1515/nanoph-2021-0712

Nanophotonics   影响因子和分区

2192-8606

2192-8614

The nonlinear optical properties of silicon have great potentials for developing all-optical switches and modulators, etc. Strategies based on all dielectric silicon photonic crystals and resonators have been proposed to design the nanophotonic devices with high nonlinearity. Nevertheless, the lack of compatible configuration with the mature CMOS technology may hinder the practical applications of the all dielectric devices. In this work, we proposed a metal-silicon hybrid metasurface to generate strong third harmonic signals from an amorphous silicon (alpha-Si) film. By integrating the alpha-Si film into a gold plasmonic nanocavity and controlling the periods of the gold meta-atoms, the efficiency of the THG process is expected to be greatly boosted. Compared to the planar alpha-Si film, the THG signal is enhanced by a factor of similar to 370. The presented results in this work may open new routes for developing various silicon photonic devices with high optical nonlinearity.

metasurface plasmonics third harmonic generation

SCI ; EI

英语

通讯

National Natural Science Foundation of China[91950114,12161141010] ; Guangdong Provincial Innovation and Entrepreneurship Project[2017ZT07C071] ; Natural Science Foundation of Shenzhen Innovation Commission[JCYJ20200109140808088]

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

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Optics ; Physics, Applied

WOS:000783646600001

WALTER DE GRUYTER GMBH

20221812051194

Amorphous silicon ; Gold ; Harmonic analysis ; Nonlinear optics ; Optical properties ; Optical switches ; Photonic devices ; Plasmonics ; Silicon photonics

Precious Metals:547.1 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Light/Optics:741.1 ; Nonlinear Optics:741.1.1 ; Optical Devices and Systems:741.3 ; Numerical Methods:921.6 ; Plasma Physics:932.3

Web of Science

1.Dalian Univ Technol, Sch Biomed Engn, Dalian 116024, Peoples R China
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China

Li, Yang,Zhang, Guanqing,Tang, Yutao,et al. Third harmonic generation from the gold/amorphous silicon hybrid metasurface[J]. Nanophotonics,2022,11:2245-2251.

Li, Yang.,Zhang, Guanqing.,Tang, Yutao.,Zhang, Xuecai.,Cai, Wenfeng.,...&Li, Guixin.(2022).Third harmonic generation from the gold/amorphous silicon hybrid metasurface.Nanophotonics,11,2245-2251.

Li, Yang,et al."Third harmonic generation from the gold/amorphous silicon hybrid metasurface".Nanophotonics 11(2022):2245-2251.