A Shape-Engineered Surface-Enhanced Raman Scattering Optical Fiber Sensor Working from the Visible to the Near-Infrared

被引：38
作者：
Foti, Antonino [1 ]
D'Andrea, Cristiano [1 ]
Bonaccorso, Francesco [1 ,2 ]
Lanza, Maurizio [1 ]
Calogero, Giuseppe [1 ]
Messina, Elena [1 ]
Marago, Onofrio Maria [1 ]
Fazio, Barbara [1 ]
Gucciardi, Pietro Giuseppe [1 ]
机构：
[1] CNR Ist Proc Chim Fis, I-98158 Messina, Italy
[2] Univ Cambridge, Dept Engn, Cambridge CB3 0FA, England
来源：
PLASMONICS | 2013年 / 8卷 / 01期
关键词：
Surface-enhanced Raman scattering; Molecular detection; Label free detection; Optical fiber sensors; SERS SENSOR; OPTIMIZED GEOMETRY; SPECTROSCOPY; TIPS; FLUORESCENCE; MICROSCOPY; BIOSENSORS; NANOTUBES; MOLECULES; SILVER;
D O I：
10.1007/s11468-012-9371-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Surface-enhanced Raman scattering (SERS) takes advantage of the giant electromagnetic field enhancement provided by localized surface plasmons in metal nanoparticles to amplify the weak Raman scattering of the molecules. Optical fibers coated with noble metal nanoparticles can therefore be used as SERS-based sensors for remote detection of molecular species. In this article, we report on the development of an optical fiber SERS sensor capable to operate on a range of excitation wavelengths from the visible to the near-infrared. We introduce a quasistatic chemical etching protocol to engineer the tip shape and investigate the effects of the tip shape on the sensor performances.
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收藏
页码：13 / 23
页数：11
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