Bioapplication of plasmonic nanosheet

K. Tamada, K. Michioka, X. Li, Y. Ikezoe, M. Saito, K. Otsuka

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

4 被引用数 (Scopus)


In this paper, we present our recent progress to fabricate "plasmonic silver nanosheet" for highly sensitive biosensing devices. Uniformly sized silver nanoparticles (d = 4.8 nm ±0.1 nm) are deposited on the substrate as a homogeneous nanosheet composed of two dimensional crystalline domains, in which the distance between silver cores is accurately controlled by the thickness of the capping organic molecules (myristate, alkanethiols). The silver nanosheet exhibits a significant shift of plasmon absorption band to the longer wavelength (ca. 50 nm) from the position in dispersion solution, while the peak width was rather reduced (sharpened) as an evidence of homogeneous coupling of local plasmons. We also found the unique coupling between propagating surface plasmon on gold thin film and localized surface plasmon on silver nanosheet. This flexible, transferable nanosheet, which can trap and transport bulk light at nano-interface, promises new application in the field of bio- and organic devices.

ホスト出版物のタイトルOrganic Photonic Materials and Devices XI
出版ステータス出版済み - 6 29 2009
イベントOrganic Photonic Materials and Devices XI - San Jose, CA, 米国
継続期間: 1 27 20091 29 2009


名前Proceedings of SPIE - The International Society for Optical Engineering


その他Organic Photonic Materials and Devices XI
CitySan Jose, CA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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