Plasmonic patterned wide-field gap mode mechanism for surface enhanced Raman imaging
Plasmonic patterned wide-field gap mode mechanism for surface enhanced Raman imaging
复制标题
用于表面增强拉曼成像的等离子体图案化宽场间隙模式机制
DOI：
10.1063/1.4973362
复制
发表时间：
2016
影响因子：
4
通讯作者：
Xiaocong Yuan
中科院分区：
文献类型：
--
作者：
Houkai Chen;Luping Du;Xiaojing Wu;Siwei Zhu;Yong Yang;Hui Fang;Xiaocong Yuan
The gap mode enhancement of metal nanoparticles is introduced into wide-field Raman microscopic imaging, where it produces a more efficient Raman scattering map compared with the scanning mechanism based on a single nanoparticle. Patterned surface plasmon illumination technique is employed to extend spatial resolution of the wide-field Raman imaging to 133 nm achieved by a modified total internal reflection microscope. The images by different Raman shifts are extracted by using narrow band pass dielectric filters. The technique can serve as a robust tool for wide-field surface enhanced Raman imaging.
