This work was supported by the National Natural Science Foundation of China (No. 61665010), the Hunan Provincial Natural Science Foundation of China (No.2018JJ3010, 2017JJ2009), the Hunan Province Key Laboratory for Ultra-Fast Micro/Nano Technology and Advanced Laser Manufacture (No. 2018TP1041), the Science and Technology Plan Project of Hunan Province (No. 2016TP1020), the Hunan Provincial Applied Basic Research Base of Optoelectronic Information Technology (No. GD18K05, GD19K06), Open fund project of Hunan Provincial Key Laboratory of Intelligent Information Processing and Application for Hengyang Normal University (No. 2017IIPAYB02), the Science and Technology Plan Project in Hengyang City, the Science and Technology Development Plan Project in Hengyang City (No. 2017KJ159), the Excellent Talents Program of HYNU, and the College Students Innovation and Entrepreneurship Training Program of Hengyang Normal University (No. cxcy1968).
This work was supported by the National Natural Science Foundation of China (No. 61665010 ), the Hunan Provincial Natural Science Foundation of China (No. 2018JJ3010 , 2017JJ2009 ), the Hunan Province Key Laboratory for Ultra-Fast Micro/Nano Technology and Advanced Laser Manufacture (No. 2018TP1041 ), the Science and Technology Plan Project of Hunan Province (No. 2016TP1020 ), the Hunan Provincial Applied Basic Research Base of Optoelectronic Information Technology (No. GD18K05 , GD19K06 ), Open fund project of Hunan Provincial Key Laboratory of Intelligent Information Processing and Application for Hengyang Normal University (No. 2017IIPAYB02 ), the Science and Technology Plan Project in Hengyang City, the Science and Technology Development Plan Project in Hengyang City (No. 2017KJ159 ), the Excellent Talents Program of HYNU , and the College Students Innovation and Entrepreneurship Training Program of Hengyang Normal University (No. cxcy1968 ).