Surface-enhanced Raman scattering using nanoporous gold on suspended silicon nitride waveguides

被引：13
|
作者：
Cao, Qipu [1 ]
Feng, Jijun [1 ]
Lu, Hongliang [2 ]
Zhang, Hui [3 ]
Zhang, Fuling [3 ]
Zeng, Heping [1 ,4 ]
机构：
[1] Univ Shanghai Sci & Technol, Sch Opt Elect & Comp Engn, Minist Educ, Shanghai Key Lab Modern Opt Syst,Engn Res Ctr Opt, Shanghai 200093, Peoples R China
[2] Fudan Univ, Sch Microelect, Shanghai Inst Intelligent Elect & Syst, State Key Lab ASIC & Syst, Shanghai 200433, Peoples R China
[3] 27th Inst China Elect Technol Grp Co, Zhengzhou 450047, Henan, Peoples R China
[4] East China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China
来源：
OPTICS EXPRESS | 2018年 / 26卷 / 19期
基金：
上海市自然科学基金; 中国国家自然科学基金;
关键词：
POLARIZING BEAM SPLITTER; SINGLE NANOPARTICLES; SPECTROSCOPY; COLLECTION; CHIP; EXCITATION; PLATFORM; ANTENNAS;
D O I：
10.1364/OE.26.024614
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A hybrid integration of nanoporous gold with silicon nitride waveguide has been realized for surface-enhanced Raman spectroscopy (SERS) at 633-nm wavelength. The SERS signal is excited through 580-nm-thick T-shape suspended waveguides and collected through an objective lens. Raman spectra for different mesa width at either transverse electric (TE) or transverse magnetic (TM) mode are measured and compared. The localized surface plasmon resonance of the nanoporous gold can result in a waveguide and polarization-dependent SERS enhancement. The presented miniaturized SERS chips can work from visible to near-infrared wavelength and a wide application prospect could be expected. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：24614 / 24620
页数：7
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