Novel nanophotonics technology using organic dye nanofibers

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K04705
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Optical engineering, Photon science
• Research Institution: National Institute for Materials Science
• Principal Investigator: TAKAZAWA Ken 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 主幹研究員 (10354317)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: ナノフォトニクス / 励起子ポラリトン / 有機色素 / ナノファイバー / 有機結晶 / 光物性

Outline of Final Research Achievements

Single crystalline nanofibers constructed from organic dye thiacyanine propagate exciton polaritons generated by optical excitation. In this project, we demonstrated that a 90-nm-wide-nanofiber, which is much narrower than the wavelength of light, efficiently propagates exciton polaritons by tuning the dispersion curves of the polaritons by cooling. Moreover, we developed a technique to coupling near infrared light into nanofibers using the Raman scattering and investigated the propagation properties for the wavelength range. We found that thiacyanine nanofibers efficiently propagate near infrared light.

Free Research Field

有機ナノ構造の分光学的研究