Lamb-dip laser-induced fluorescence spectroscopy for measuring magnetic field in a plasma

Kohei Ogiwara, Mitsutoshi Aramaki, Shinji Yoshimura, Yuta Itoh, Yoshiyuki Kato, Masayoshi Y. Tanaka

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    We have developed a Lamb-dip laser-induced fluorescence (LIF) system to precisely measure the local magnetic field strength in a plasma. Utilizing the hole burning effect, we made sharp dips on the LIF spectrum as the frequency markers and accurately determined the Zeeman splitting by reading the frequency interval of the dips. The method is valid even in the conditions where the Doppler broadening of the LIF spectrum is larger than the Zeeman shift. The newly developed LIF system is capable of determining a magnetic field strength on the order of 10-4 T. It has been demonstrated that the Lamb-dip LIF system can successfully reproduce a very small field inhomogeneity in the HYPER-I linear device.

    Original languageEnglish
    Article number036101
    JournalJapanese Journal of Applied Physics
    Volume50
    Issue number3
    DOIs
    Publication statusPublished - Mar 1 2011

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    Fluorescence spectroscopy
    laser induced fluorescence
    Fluorescence
    Magnetic fields
    Plasmas
    Lasers
    magnetic fields
    spectroscopy
    field strength
    Doppler effect
    hole burning
    markers
    inhomogeneity
    intervals
    shift

    All Science Journal Classification (ASJC) codes

    • Engineering(all)
    • Physics and Astronomy(all)

    Cite this

    Lamb-dip laser-induced fluorescence spectroscopy for measuring magnetic field in a plasma. / Ogiwara, Kohei; Aramaki, Mitsutoshi; Yoshimura, Shinji; Itoh, Yuta; Kato, Yoshiyuki; Tanaka, Masayoshi Y.

    In: Japanese Journal of Applied Physics, Vol. 50, No. 3, 036101, 01.03.2011.

    Research output: Contribution to journalArticle

    Ogiwara, Kohei ; Aramaki, Mitsutoshi ; Yoshimura, Shinji ; Itoh, Yuta ; Kato, Yoshiyuki ; Tanaka, Masayoshi Y. / Lamb-dip laser-induced fluorescence spectroscopy for measuring magnetic field in a plasma. In: Japanese Journal of Applied Physics. 2011 ; Vol. 50, No. 3.
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