• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2013 Fiscal Year Final Research Report

Single molecule absorption spectroscopy using nanophotonic devices for non-fluorescent molecules

Research Project

  • PDF
Project/Area Number 23740228
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Condensed matter physics I
Research InstitutionHokkaido University

Principal Investigator

FUJIWARA Masazumi  北海道大学, 電子科学研究所, 助教 (30540190)

Project Period (FY) 2011 – 2012
Keywords光物性 / 一分子分光 / ナノフォトニクス / 物理化学 / 量子エレクトロニクス
Research Abstract

This research aims at development of sensitive single molecule absorption spectroscopy of non-fluorescent molecules by increasing molecular absorption cross-section dramatically with nanophotonic devices. The main results of this project were following three. (1) We demonstrated that single colloidal quantum dots can couple with optical nanofiber with a coupling efficiency of 7.4%. This coupling efficiency estimates 0.1% of optical absorption by single molecules on optical nanofiber even at room temperature. (2) We investigated the coupling of the optical nanofibers with various nanophotonic structures using numerical simulations and found best possible nanophotonic waveguide structures where the maximum absorption of single molecules can be obtained. (3) We have demonstrated the fabrication of free-standing silicon nitride waveguides for this absorption spectroscopy.

  • Research Products

    (18 results)

All 2013 2012 2011 Other

All Journal Article (9 results) Presentation (6 results) (of which Invited: 2 results) Book (1 results) Remarks (2 results)

  • [Journal Article] Observation of 1.2-GHz linewidth of zero-phonon-line in photoluminescence spectra of nitrogen vacancy centers in nanodiamonds using a Fabry-Perot interferometer2013

    • Author(s)
      Hong-Quan Zhao, Masazumi Fujiwara, Masayuki Okano, and Shigeki Takeuchi
    • Journal Title

      Opt. Express

      Volume: 21 Pages: 29679-29686

  • [Journal Article] Embedded TiO2 waveguides for sensing nanofluorophores in a microfluidic channel2012

    • Author(s)
      Masayuki Furuhashi, Masazumi Fujiwara, Takahito Ohshiro, KazukiMatsubara, Makusu Tsutsui, Masateru Taniguchi, Shigeki Takeuchi, and Tomoji Kawai
    • Journal Title

      Appl. Phys. Lett

      Volume: 101 Pages: 153115

  • [Journal Article] Coupling of ultrathin tapered fibers with high-Q microsphere resonators at cryogenic temperatures and observation of phase-shift transition from undercoupling to overcoupling2012

    • Author(s)
      Masazumi Fujiwara, Tetsuya Noda, Akira Tanaka, Kiyota Toubaru, Hong-Quan Zhao, and Shigeki Takeuchi
    • Journal Title

      Opt. Express

      Volume: 20 Pages: 19545-19553

  • [Journal Article] Effect of Substrates on the Temperature Dependence of Fluorescence Spectra of Nitrogen Vacancy Centers in Diamond Nanocrystals2012

    • Author(s)
      Hong-Quan Zhao, Masazumi Fujiwara, and Shigeki Takeuchi
    • Journal Title

      Jpn. J. Appl. Phys

      Volume: 51 Pages: 090110

  • [Journal Article] Suppression of fluorescence phonon sideband from nitrogen vacancy centers in diamond nanocrystals by substrate effect2012

    • Author(s)
      Hong-Quan Zhao, Masazumi Fujiwara, and Shigeki Takeuchi
    • Journal Title

      Opt. Express

      Volume: 20 Pages: 15628-15635

  • [Journal Article] A nanodiamond-tapered fiber system with high single-mode coupling efficiency2012

    • Author(s)
      Tim Schroder, Masazumi Fujiwara, Tetsuya Noda, Hong-Quan Zhao, Oliver Benson, and Shigeki Takeuchi
    • Journal Title

      Opt. Express

      Volume: 20 Pages: 10490-10497

  • [Journal Article] Highly Efficient Coupling of Photons from Nanoemitters into Single-Mode Optical Fibers2011

    • Author(s)
      Masazumi Fujiwara, Kiyota Toubaru, Tetsuya Noda, Hong-Quan Zhao, and Shigeki Takeuchi
    • Journal Title

      Nano Lett

      Volume: 11 Pages: 4362-4365

  • [Journal Article] Development of microfabricated TiO2 channel waveguides2011

    • Author(s)
      Masayuki Furuhashi, Masazumi Fujiwara, Takahito Ohshiro, Makusu Tsutsui, Kazuki Matsubara, Masateru Taniguchi, Shigeki Takeuchi, and Tomoji Kawai
    • Journal Title

      AIP Advances

      Volume: 1 Pages: 032102

  • [Journal Article] Optical transmittance degradation in tapered fibers2011

    • Author(s)
      Masazumi Fujiwara, Kiyota Toubaru and Shigeki Takeuchi
    • Journal Title

      Opt. Express

      Volume: 19 Pages: 8596-8601

  • [Presentation] Coupling diamond nitrogen vacancy centers with ultrathin optical tapered fibres at cryogenic temperatures toward efficient indistinguishable single photon sources2013

    • Author(s)
      M. Fujiwara, H-Q. Zhao, M. Okano, T. Noda, K. Ikeda, H. Sumiya, S. Takeuchi
    • Organizer
      The 2013 JSAP-MRS Joint Symposia
    • Place of Presentation
      Kyoto
    • Year and Date
      20130916-20
  • [Presentation] Coupling diamond nitrogen vacancy centers with ultrathin optical tapered fibres at cryogenic temperatures toward efficient indistinguishable single photon sources2013

    • Author(s)
      M. Fujiwara, H-Q. Zhao, M. Okano, T. Noda, K. Ikeda, H. Sumiya, S. Takeuchi
    • Organizer
      International Conference on Diamond and Carbon Materials
    • Place of Presentation
      Riva del Garda, Italy
    • Year and Date
      20130902-05
  • [Presentation] Coupling diamond nitrogen vacancy centers with tapered fibers toward indistinguishable single photon generation2013

    • Author(s)
      M. Fujiwara, T. Schroder, H.-Q. Zhao, M. Okano, A. Tanaka, K. Toubaru, T. Noda, O. Benson and S. Takeuchi
    • Organizer
      CLEO-Pacific Rim 2013 (Conference on Lasers and Electro-Optics)
    • Place of Presentation
      Kyoto
    • Year and Date
      20130630-0704
  • [Presentation] Efficient coupling of ultrathin tapered fibers with nanoemitters and microsphere resonators2012

    • Author(s)
      M. Fujiwara, T. Noda, A. Tanaka, K. Toubaru, H.-Q. Zhao, and S. Takeuchi
    • Organizer
      Photon 12
    • Place of Presentation
      Durham, UK
    • Year and Date
      20120903-06
    • Invited
  • [Presentation] Highly Efficient Coupling of Photons from Single CdSe/ZnS Nanocrystals into Single-Mode Optical Fibers2012

    • Author(s)
      Masazumi Fujiwara, Kiyota Toubaru, Tetsuya Noda, Hong-Quan Zhao, Shigeki Takeuchi
    • Organizer
      CLEO-QELS 2012 (Conference on Lasers and Electro-Optics and Quantum Electronics and Laser Science Conference)
    • Place of Presentation
      San Jose
    • Year and Date
      20120506-11
  • [Presentation] Solid-state photonic quantum phase gates by using fiber-microsphere cavity and diamond NV centers2011

    • Author(s)
      M. Fujiwara, H.-Q. Zhao, A. Tanaka, H. Takashima, K. Toubaru, T. Noda, and S. Takeuchi
    • Organizer
      20th International Laser Physics Workshop
    • Place of Presentation
      Sarajevo, Bosnia & Herzegovina
    • Year and Date
      20110711-15
    • Invited
  • [Book] 化学工業 : 「ナノテーパ光ファイバを駆使した光量子デバイス」2012

    • Author(s)
      藤原正澄、竹内繁樹
    • Publisher
      化学工業社、東京
  • [Remarks] 研究室ホームページ

    • URL

      http://www.sanken.osaka-u.ac.jp/labs/qip/

  • [Remarks] 個人ホームページ

    • URL

      http://www.masazumifujiwara.net/

URL: 

Published: 2015-06-25  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi