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Laser patterning induced the tunability of nonlinear optical property in silver thin films TEXT SIZE: A A A
Patterned Ag thin films were obtained through laser irradiation at ambient conditions. We investigated the effects of laser scanning rate for the structure and optical properties of patterned Ag films. XPS results show that the volume fractions of Ag and Ag2O are dependent on the laser scanning rate. The localized surface plasmon resonance was observed in the as-irradiated samples and increased with the acceleration of the scanning rate. Moreover, with the variations of laser scanning rates and excitation energy, these samples exhibit tunable self-defocusing nonlinearity caused by charge transfer and the enhanced electromagnetic field at the interface between Ag and Ag2O.
 

Publication name

 CHEMICAL PHYSICS LETTERS Volume: 751 Article Number: 137535 DOI: 10.1016/j.cplett.2020.137535 Published: JUL 16 2020

Author(s)

 Li, Zhengwang; Hong, Ruijin; Liu, Qingyou; Wang, Qi; Tao, Chunxian; Lin, Hui; Zhang, Dawei

Corresponding author(s) 

 HONG Ruijin
 rjhong@usst.edu.cn
 Univ Shanghai Sci & Technol, Minist Educ, Engn Res Ctr Opt Instrument & Syst, 516 Jungong Rd, Shanghai 200093, Peoples R
 Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, 516 Jungong Rd, Shanghai 200093, Peoples R China.

Author(s) from IGCAS   LIU Qingyou

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