Facile preparation of silver nanoparticles in bulk silicate glass by high-repetition-rate picosecond laser pulses

被引：8
作者：
Shen, Danyang [1 ,2 ]
Qian, Jing [1 ,2 ]
Wang, Chengwei [1 ,2 ]
Wang, Guande [1 ,2 ]
Wang, Xuehui [3 ]
Zhao, Quanzhong [1 ,2 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
[3] Huagong Laser Engn Co Ltd, Technol Ctr, Wuhan 430000, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2021年 / 19卷 / 01期
基金：
中国国家自然科学基金;
关键词：
nonlinear optical materials; laser materials processing; microstructure fabrication; SPACE-SELECTIVE PRECIPITATION; NONLINEAR-OPTICAL PROPERTIES; FEMTOSECOND; FILMS;
D O I：
10.3788/COL202119.011901
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
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 beta is determined to be 2.47 x 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.
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页数：5
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