High-efficiency infrared upconversion imaging with nonlinear silicon metasurfaces empowered by quasi-bound states in the continuum
1School of Information Engineering, Nanchang University, Nanchang 330031, China
2Institute for Advanced Study, Nanchang University, Nanchang 330031, China
3School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
4School of Education, Nanchang Institute of Science and Technology, Nanchang 330108, China
5School of Optoelectronic Engineering, Guangdong Polytechnic Normal University, Guangzhou 510665, China
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