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

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    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 2011

    All Science Journal Classification (ASJC) codes

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

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