Ultraviolet excitation photothermal spectroscopy of non-labeled amino acids and visible light-induced signal enhancement

Satoshi Hirashima, Akira Harata

    研究成果: Contribution to journalArticle査読

    6 被引用数 (Scopus)

    抄録

    A measurement system for ultraviolet-laser excitation photothermal lens spectroscopy has been designed and constructed for measuring dilute amino acids in liquid solutions. An ultraviolet laser beam is generated as the fourth harmonic of a Ti:sapphire laser in the wavelength range of 212 to 220nm. Photothermal lens spectra of alanine, phenylalanine, serine, and tryptophan are observed. Photothermal lens spectra of these samples are coincident with their absorption spectra. It is demonstrated that photothermal lens signals of the amino acids can be amplified by simultaneous excitation with a visible laser. This ultraviolet-

    本文言語英語
    ページ(範囲)3970-3973
    ページ数4
    ジャーナルJapanese journal of applied physics
    47
    5 PART 2
    DOI
    出版ステータス出版済み - 5 23 2008

    All Science Journal Classification (ASJC) codes

    • 工学(全般)
    • 物理学および天文学(全般)

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