Optical and electrical Kerr effects in polydiacetylene nanoparticle submonolayer probed by surface plasmon resonance spectroscopy

Oki Kuraishi, Daisuke Tanaka, Masayuki Shimojo, Kotaro Kajikawa

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Optical and electrical Kerr effects in a polydiacetylene (PDA) nanoparticle (NP) submonolayer film formed on a gold substrate were investigated. The third-order nonlinear susceptibilities of the PDA NPs at an off-resonance wavelength of 1064nm were (3)=(7.6+6.6i)×10 9esu (optical Kerr effect) and (3)=(1.2+0.39i)×10 9esu (electrical Kerr effect), which are an order of magnitude larger than the value reported. We observed a reflectivity change of 5% with an illumination intensity of 9.3MWcm 2 in the attenuated total reflection geometry, as a result of the refractive index change of 0.001 on the basis of the optical Kerr effect. The results indicate that the PDA NPs are promising materials for optical switching using plasmonic waveguides.

Original languageEnglish
Article number235105
JournalJournal of Physics D: Applied Physics
Volume45
Issue number23
DOIs
Publication statusPublished - 2012 Jun 13

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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