Beam splitters for high-order harmonics using transparent materials to visible light

Yosuke Kojima, Yuske Furukawa, Yasuo Nabekawa, Eiji J. Takahashi, Fumihiko Kannari, Katsumi Midorikawa

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    High-order harmonic (HOH) beam generated from the intense femtosecond laser pulse always propagates coaxially with the fundamental laser field. Thus, we need to separate the fundamental laser field from the HOH beam whenever we apply the HOH to spectroscopies. Conventional thin foilmetal filters can completely eliminate visible or infrared fundamental laser light, while the thin foils are very fragile and easily damaged with the intense fundamental laser pulse. We have already demonstrated that a silicon or silicon carbide plate is useful for splitting the fundamental and HOH beams thanks to the Brewster incident angle to the fundamental laser beam. Nevertheless, the silicon or silicon carbide (amorphous) beam splitter (BS) is not fully satisfactory for the application because the BS is opaque for visible light. Hence, we cannot reuse the transmitted light. Thermally induced effects such as deformation of the surface may not be negligible under the high-power irradiation of the laser field. Thus, we have searched for transparent materials for visible light which should be suitable for the BS of the HOH beam.

    Original languageEnglish
    Title of host publicationMultiphoton Processes and Attosecond Physics - Proceedings of the 12th Int. Conference on Multiphoton Processes, ICOMP 2011 and the 3rd International Conference on Attosecond Physics, ATTO 2011
    PublisherSpringer Science and Business Media, LLC
    Pages151-153
    Number of pages3
    ISBN (Print)9783642289477
    DOIs
    Publication statusPublished - 2012 Jan 1
    Event12th International Conference on Multiphoton Processes, ICOMP 2011 and the 3rd International Conference on Attosecond Physics, ATTO 2011 - Sapporo, Hokkaido, Japan
    Duration: 2011 Jul 32011 Jul 8

    Publication series

    NameSpringer Proceedings in Physics
    Volume125
    ISSN (Print)0930-8989
    ISSN (Electronic)1867-4941

    Other

    Other12th International Conference on Multiphoton Processes, ICOMP 2011 and the 3rd International Conference on Attosecond Physics, ATTO 2011
    CountryJapan
    CitySapporo, Hokkaido
    Period11/7/311/7/8

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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  • Cite this

    Kojima, Y., Furukawa, Y., Nabekawa, Y., Takahashi, E. J., Kannari, F., & Midorikawa, K. (2012). Beam splitters for high-order harmonics using transparent materials to visible light. In Multiphoton Processes and Attosecond Physics - Proceedings of the 12th Int. Conference on Multiphoton Processes, ICOMP 2011 and the 3rd International Conference on Attosecond Physics, ATTO 2011 (pp. 151-153). (Springer Proceedings in Physics; Vol. 125). Springer Science and Business Media, LLC. https://doi.org/10.1007/978-3-642-28948-4_24