Efficient Single-Photon Coupling from a Nitrogen-Vacancy Center Embedded in a Diamond Nanowire Utilizing an Optical Nanofiber

Yuya Yonezu, Kentaro Wakui, Kentaro Furusawa, Masahiro Takeoka, Kouichi Semba, Takao Aoki

    Research output: Contribution to journalArticle

    3 Citations (Scopus)


    Nitrogen-Vacancy (NV) centers in diamond are promising solid-state quantum emitters that can be utilized for photonic quantum applications. Various diamond nanophotonic devices have been fabricated for efficient extraction of single photons emitted from NV centers to a single guided mode. However, for constructing scalable quantum networks, further efficient coupling of single photons to a guided mode of a single-mode fiber (SMF) is indispensable and a difficult challenge. Here, we propose a novel efficient hybrid system between an optical nanofiber and a cylindrical-structured diamond nanowire. The maximum coupling efficiency as high as 75% for the sum of both fiber ends is obtained by numerical simulations. The proposed hybrid system will provide a simple and efficient interface between solid-state quantum emitters and a SMF suitable for constructing scalable quantum networks.

    Original languageEnglish
    Article number12985
    JournalScientific Reports
    Issue number1
    Publication statusPublished - 2017 Dec 1


    ASJC Scopus subject areas

    • General

    Cite this