Plasmonic patterned wide-field gap mode mechanism for surface enhanced Raman imaging

Plasmonic patterned wide-field gap mode mechanism for surface enhanced Raman imaging

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...

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Veröffentlicht in:Applied physics letters 2016-12, Vol.109 (26)
Hauptverfasser: Chen, Houkai, Du, Luping, Wu, Xiaojing, Zhu, Siwei, Yang, Yong, Fang, Hui, Yuan, Xiaocong
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Applied physics
Imaging
Nanoparticles
Raman spectra
Spatial resolution
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container_issue 26
container_start_page
container_title Applied physics letters
container_volume 109
creator Chen, Houkai
Du, Luping
Wu, Xiaojing
Zhu, Siwei
Yang, Yong
Fang, Hui
Yuan, Xiaocong
description 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.
doi_str_mv 10.1063/1.4973362
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subjects Applied physics
Imaging
Nanoparticles
Raman spectra
Spatial resolution
title Plasmonic patterned wide-field gap mode mechanism for surface enhanced Raman imaging
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