Al-induced tunable surface plasmon resonance of Ag thin film by laser irradiation

被引：8
作者：
Hong, Ruijin [1 ,2 ]
Sun, Wenfeng [1 ,2 ]
Liu, Qingyou [3 ]
Li, Zhengwang [1 ,2 ]
Tao, Chunxian [1 ,2 ]
Zhang, Daohua [4 ]
Zhang, Dawei [1 ,2 ]
机构：
[1] Univ Shanghai Sci & Technol, Engn Res Ctr Opt Instrument & Syst, Minist Educ, 516 Jungong Rd, Shanghai 200093, Peoples R China
[2] Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, 516 Jungong Rd, Shanghai 200093, Peoples R China
[3] Chinese Acad Sci, Key Lab High Temp & High Pressure Study Earths In, Inst Geochem, Guiyang 550081, Guizhou, Peoples R China
[4] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
来源：
APPLIED PHYSICS EXPRESS | 2019年 / 12卷 / 08期
基金：
中国国家自然科学基金;
关键词：
NANOPARTICLES; ABSORPTION;
D O I：
10.7567/1882-0786/ab2c30
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Nd:YAG fiber pulsed laser irradiation was employed to tune the localized surface plasmon resonance (LSPR) properties of a single layer of Ag film and Ag/Al bilayer film in this letter. The LSPR wavelength of both films was realized: the tunability in wavelength shift and intensity by varying the laser scan speeds. Compared with the as-irradiated Ag film with limited LSPR wavelength shift and weak intensity, the Al buffer layer has the effects of enhancing the LSPR intensity, widening both the LSPR peak and wavelength shift, suppressing the interband absorption peak and improving the surface enhanced Raman scattering (SERS) performance of the Ag film. (C) 2019 The Japan Society of Applied Physics
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页数：6
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