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Remote Excitation Polarization-Dependent Surface Photochemical Reaction by Plasmonic Waveguide

Sun, Mengtao; Hou, Yanxue; Li, Zhipeng; Liu, Liwei and Xu, Hongxing LU (2011) In Plasmonics 6(4). p.681-687
Abstract
For the first time, we report remote excitation polarization-dependent surface photochemical reaction by plasmonic waveguide. Remote excitation polarization-dependent surface-enhanced Raman scattering (SERS) spectra indicate a surface photochemical reaction that p-aminothiophenol is converted to p,p'-dimercaptoazobenzene (DMAB) induced by the plasmonic waveguide. Surface plasmon polaritons generated at the end of a silver nanowire can propagate efficiently along the nanowire, and be coupled by nanoparticles near the nanowire as a nanoantenna. Massive electromagnetic enhancement is generated in the nanogap between the nanowire and the nanoparticles. The remote excitation polarization-dependent SERS spectra can be obtained experimentally in... (More)
For the first time, we report remote excitation polarization-dependent surface photochemical reaction by plasmonic waveguide. Remote excitation polarization-dependent surface-enhanced Raman scattering (SERS) spectra indicate a surface photochemical reaction that p-aminothiophenol is converted to p,p'-dimercaptoazobenzene (DMAB) induced by the plasmonic waveguide. Surface plasmon polaritons generated at the end of a silver nanowire can propagate efficiently along the nanowire, and be coupled by nanoparticles near the nanowire as a nanoantenna. Massive electromagnetic enhancement is generated in the nanogap between the nanowire and the nanoparticles. The remote excitation polarization-dependent SERS spectra can be obtained experimentally in the nanogaps; furthermore, the remote excitation polarization-dependent SERS spectra of DMAB reveal the occurrence of this surface catalytic reaction. Theoretical simulations using finite-difference time-domain methods strongly support our experimental results. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Remote excitation, Polarization-dependent, Surface photochemical, reaction, Plasmonic waveguide
in
Plasmonics
volume
6
issue
4
pages
681 - 687
publisher
Springer
external identifiers
  • wos:000300101900010
  • scopus:80255134588
ISSN
1557-1963
DOI
10.1007/s11468-011-9251-2
language
English
LU publication?
yes
id
69ada2f4-4777-476a-911d-03fadab064cb (old id 2378544)
date added to LUP
2012-03-27 14:05:26
date last changed
2017-08-13 03:16:14
@article{69ada2f4-4777-476a-911d-03fadab064cb,
  abstract     = {For the first time, we report remote excitation polarization-dependent surface photochemical reaction by plasmonic waveguide. Remote excitation polarization-dependent surface-enhanced Raman scattering (SERS) spectra indicate a surface photochemical reaction that p-aminothiophenol is converted to p,p'-dimercaptoazobenzene (DMAB) induced by the plasmonic waveguide. Surface plasmon polaritons generated at the end of a silver nanowire can propagate efficiently along the nanowire, and be coupled by nanoparticles near the nanowire as a nanoantenna. Massive electromagnetic enhancement is generated in the nanogap between the nanowire and the nanoparticles. The remote excitation polarization-dependent SERS spectra can be obtained experimentally in the nanogaps; furthermore, the remote excitation polarization-dependent SERS spectra of DMAB reveal the occurrence of this surface catalytic reaction. Theoretical simulations using finite-difference time-domain methods strongly support our experimental results.},
  author       = {Sun, Mengtao and Hou, Yanxue and Li, Zhipeng and Liu, Liwei and Xu, Hongxing},
  issn         = {1557-1963},
  keyword      = {Remote excitation,Polarization-dependent,Surface photochemical,reaction,Plasmonic waveguide},
  language     = {eng},
  number       = {4},
  pages        = {681--687},
  publisher    = {Springer},
  series       = {Plasmonics},
  title        = {Remote Excitation Polarization-Dependent Surface Photochemical Reaction by Plasmonic Waveguide},
  url          = {http://dx.doi.org/10.1007/s11468-011-9251-2},
  volume       = {6},
  year         = {2011},
}