Hybrid sensing devices based on integrated optical nanofibers

• Project/Area Number: 15K21212
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nano/Microsystems; Measurement engineering
• Research Institution: Kyushu University
• Principal Investigator: Yamamoto Kazuhiro 九州大学, 先導物質化学研究所, 助教 (40455449)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 光ファイバー / ナノファイバー / センシング / 表面プラズモン / 集束イオンビーム / FDTD / 近接場光学 / ラボオンファイバー / プラズモン / 光センシング / FDTD法

Outline of Final Research Achievements

In this study, to apply our novel nanofiber structure fabricated by the focused ion beam milling and chemical wet etching for optical sensing, we demonstrated the sensing of liquids with different refractive index by monitoring transmission spectrum. The propagation modes in nanofiber are changed from the mode in normal fiber section because of the tapering of core. So, when we detect the mode change due to the cladding environment, we can estimate the refractive index of cladding material in micron-sized area by evaluating the transmission spectrum. We can use such mechanisms for the in-line nanofiber optical sensing. Furthermore, We investigated the introduction of the photonic crystal and metal nano structures to the optical nanofibers which enhanced the sensibility of optical sensing.

Research Products

• [Presentation] 光ファイバー端面上アクティブプラズモンデバイスの作製 (2017)
  • Author(s): 山本 和広、山口 堅三
  • Organizer: 第64回 応用物理学会春季学術講演会
  • Place of Presentation: パシフィコ横浜
  • Year and Date: 2017-03-16
• [Presentation] Demonstration of active plasmon devices on an optical fiber (2017)
  • Author(s): Kazuhiro Yamamoto, Kenzo Yamaguchi
  • Organizer: the 8th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META'17), Incheon, South Korea
  • Int'l Joint Research
• [Presentation] ラボ・オン・ファイバー技術を目指したナノ構造化光ファイバーの開発 (2017)
  • Author(s): 山本和広
  • Organizer: 第五回アライアンス若手研究交流会、東京
  • Invited
• [Presentation] Integrated nanofiber for in-line optical sensing (2016)
  • Author(s): Kazuhiro Yamamoto, Kenzo Yamaguchi, and Akira Otomo
  • Organizer: KJF International Conference on Organic Materials for Electronics and Photonics 2016 (KJF-ICOMEP 2016)
  • Place of Presentation: ACROS Fukuoka
  • Year and Date: 2016-09-05
  • Int'l Joint Research
• [Presentation] Plasmonic nanostructures combined with integrated nano-fiber (2015)
  • Author(s): K Yamamoto, K.Yamaguchi, S.Yokoyama, A.Otomo
  • Organizer: The 6th International Conference on Metamaterials, Photonic Crystals and Photonics (META'15)
  • Place of Presentation: New York, USA
  • Year and Date: 2015-08-04
  • Int'l Joint Research