摘要
One-step precipitation of Ag nanoparticles in Ag+-doped silicate glasses was achieved through a focused picosecond laser with a high repetition rate. Absorption spectra and transmission electron microscopy(TEM) confirmed that metallic Ag nanoparticles were precipitated within glass samples in the laser-written domain. The surface plasmon absorbance fits well with the experimental absorption spectrum. The nonlinear absorption coefficient β is determined to be 2.47 × 10-14 m/W by fitting the open aperture Z-scan curve, which originated from the intraband transition in the s-p Ag band. The formation mechanism of Ag-glass nanocomposites is discussed as well.
作者
Danyang Shen
Jing Qian
Chengwei Wang
Guande Wang
Xuehui Wang
Quanzhong Zhao
沈丹阳;钱静;王承伟;王关德;王雪辉;赵全忠(State Key Laboratory of High Field Laser Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;Technology Center,Huagong Laser Engineering Co.,Ltd.,Wuhan 430000,China)
基金
supported by the National Key Research and Development Program of China (No. 2016YFB1102405)
National Natural Science Foundation of China (No. 61675214)
Shanghai Sailing Program (No. 20YF1455200)。
