Abstract
We report on the enhanced linear absorption and modified nonlinear absorption of nanowires coated with Ag nanoparticles. Experimental results indicated that the coated Ag nanoparticles significantly increased the linear absorption of the nanostructures in the wavelength range of visible light. Z-scan experiments showed that when the excitation energy increased, the nonlinear absorption of the nanowires changed from reverse-saturable absorption to saturable absorption. When Ag nanoparticles were coated on the nanowires, the reverse-saturable absorption was significantly inhibited. The as-prepared nanostructures may find potential applications in the field of solar cells and all-optical switching.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
Feifei Chen, Shixun Dai, Tiefeng Xu, Xiang Shen, Baoan Song, Changgui Lin, Xunsi Wang, Chao Liu, Kai Xu, and Jong Heo
J. Opt. Soc. Am. B 28(5) 1283-1288 (2011)
Yongqiang Jiang, Ying Ma, Zhaoyang Fan, Peng Wang, Xiaohong Li, Yingwei Wang, Yu Zhang, Jianqiang Shen, Gang Wang, Zhong-Jian Yang, Si Xiao, Yongli Gao, and Jun He
Opt. Lett. 43(3) 523-526 (2018)
Shuya Ning, Hua Dong, Naming Zhang, Juanning Zhao, and Lei Ding
Opt. Mater. Express 6(12) 3725-3732 (2016)