表面科学
Online ISSN : 1881-4743
Print ISSN : 0388-5321
ISSN-L : 0388-5321
論文
可視プローブ波長可変性を持つマルチプレックス赤外可視和周波発生分光装置の開発
石橋 孝章大西 洋
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2002 年 23 巻 8 号 p. 468-474

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We present a newly developed multiplex sum-frequency generation (SFG) spectrometer that has wavelength tunability of the visible probe. The tunable wavelength range of the visible probe was 470∼800, and 401 nm. The frequency width of the visible probe were 7∼10 cm−1. An SFG spectrum over a 400 cm−1 spectral region was obtainable by a single measurement. We measured SFG spectra of a self-assembled monolayer of octadecanethiol on a gold substrate with the visible probes laser of various wavelengths (401, 477, 535, 633 nm). The observed spectra were drastically changed with the wavelength of the visible probe. We ascribed this spectral change to the change in the phase and magnitude of the contribution from the gold substrate because the interband transition threshold of gold is located in the wavelength range of the visible probe.

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この記事はクリエイティブ・コモンズ [表示 - 非営利 4.0 国際]ライセンスの下に提供されています。
https://creativecommons.org/licenses/by-nc/4.0/deed.ja
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