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Controlling Surface Plasmon Optical Transmission with an Electrochemical Switch Using Conducting Polymer Thin Films

  1. Akira Baba1,*,
  2. Kohji Tada1,
  3. Rapiphun Janmanee1,
  4. Saengrawee Sriwichai2,
  5. Kazunari Shinbo1,
  6. Keizo Kato1,
  7. Futao Kaneko1,
  8. Sukon Phanichphant2

Article first published online: 18 JUN 2012

DOI: 10.1002/adfm.201200373

Issue

Advanced Functional Materials

Advanced Functional Materials

Volume 22, Issue 20, pages 4383–4388, October 23, 2012

Additional Information

How to Cite

Baba, A., Tada, K., Janmanee, R., Sriwichai, S., Shinbo, K., Kato, K., Kaneko, F. and Phanichphant, S. (2012), Controlling Surface Plasmon Optical Transmission with an Electrochemical Switch Using Conducting Polymer Thin Films. Adv. Funct. Mater., 22: 4383–4388. doi: 10.1002/adfm.201200373

Author Information

  1. 1

    Center for Transdisciplinary Research and Graduate School of Science and Technology, Niigata University, 8050 Ikarashi 2-nocho, Nishi-ku, Niigata 950-2181, Japan

  2. 2

    Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand

*Center for Transdisciplinary Research and Graduate School of Science and Technology, Niigata University, 8050 Ikarashi 2-nocho, Nishi-ku, Niigata 950-2181, Japan.

Publication History

  1. Issue published online: 12 OCT 2012
  2. Article first published online: 18 JUN 2012
  3. Manuscript Revised: 27 APR 2012
  4. Manuscript Received: 7 FEB 2012

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Keywords:

  • surface plasmons;
  • conducting polymers;
  • electrochromism;
  • optical transmission

Abstract

Surface plasmon resonance (SPR)-enhanced optical transmission is actively controlled by an electrochromism of conducting polymer thin films. Polyaniline and poly(3,4-ethylenedioxythiophene) thin films are deposited on a thin gold grating surface. SPR-enhanced optical transmission is demonstrated by irradiating white light on the conducting polymer thin film–gold grating surface and detecting the transmitted light from the back side. The transmission SPR system is combined with an electrochemical setup to manipulate the resonance. The wavelength of the sharp peak in the transmission light spectra is tuned by electrochemical doping/dedoping of the conducting polymer thin films. The present study of controllable SPR-enhanced optical transmission should provide novel active plasmonic devices such as active bandpass filters or biosensors.

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