Ultrafast Measurements of Coherent Vibrations in Benzenethiol Monolayer Film
1 Faculty of Science/Engineering, Yokohama National University, Hodogaya-ku Tokiwadai 79-5, Yokohama 240-8501 Japan
2 Graduate School of Engineering, Yokohama National University, Hodogaya-ku Tokiwadai 79-5, Yokohama 240-8501 Japan
3 School of Applied Sciences, National Defense Academy, Hashirimizu 1-10-20, Yokosuka 239-8686, Japan
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Ultrafast photo-reflectance at a monolayer film of benzentiol molecule adsorbed on a gold surface was measured by means of pump-probe method using an ultrashort pulse laser. The surface-sensitive transient response in THz region revealed coherent motion of the molecules affected by the adsorption.
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