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Applied Physics B

, Volume 84, Issue 1–2, pp 239–241 | Cite as

Transmission enhancement of Ag nanoparticle aggregates in azo-polymer films

  • D. Zhang
  • P. WangEmail author
  • J. Zhou
  • Y. Sun
  • X. Jiao
  • Y. Deng
  • H. Ming
  • Q. Zhang
  • Z. Zhang
Article

Abstract

Ag nanoparticle aggregates in azo-polymer films were investigated by using scanning near-field optical microscopy. The near-field optical images show that transmission enhancement happened for these metal aggregates. Far-field experiment results show that the photo-induced isomeration speed of the azo-polymer molecules was enhanced when doped with Ag nanoparticle aggregates. The mechanism of the transmittance enhancement and speed enhancement was discussed from the viewpoint of the excitation of the surface plasmon of Ag nanoparticle aggregates.

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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • D. Zhang
    • 1
  • P. Wang
    • 1
    Email author
  • J. Zhou
    • 2
  • Y. Sun
    • 2
  • X. Jiao
    • 1
  • Y. Deng
    • 1
  • H. Ming
    • 1
  • Q. Zhang
    • 2
  • Z. Zhang
    • 3
  1. 1.Department of PhysicsUniversity of Science and Technology of ChinaHefeiP.R. China
  2. 2.Department of Polymer Science and EngineeringUniversity of Science and Technology of ChinaHefeiP.R. China
  3. 3.Laboratory of Optical Physics, Institute of PhysicsChinese Academy of ScienceBeijingP.R. China

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