Study on surface reactions by spatial and temporal mapping

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The purpose of this study is to elucidate the mechanisms of various processes and phenomena at solid surfaces and interfaces by using various means including newly developed sum-frequency generation microscopy, scanning tunneling microscopy, theoretical simulations, and time-resolved second harmonic and sum-frequency generation spectroscopy. This study mainly focused on reactions at oxidized silver surfaces, photo-reduction at gold nanoclusters, carrier distributions at the interface between organic semiconductor and dielectrics, coherent surface phonon excitation at alkali metal adsorption systems, and vibrational energy transport in nanometer-thick layers on metal surfaces.