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Direct observation of radiationless transitions from the excited to ground electronic state under collision-free conditions
Institution:1. Division of Electrical Engineering and Computer Science, Kanazawa University, Kanazawa 920-1192, Japan;2. Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), Saitama 332-0012, Japan;1. Ecole Normale Supérieure – PSL Research University, Département de Chimie, Sorbonne Universités – UPMC Univ. Paris 06, CNRS UMR 8640 PASTEUR, 24 rue Lhomond, 75005 Paris, France;2. Ecole Normale Supérieure – PSL Research University, Département de Chimie, CNRS, UMR 7203 LBM, Sorbonne Universités, UPMC Univ Paris 06, LBM, 4, Place Jussieu, 75005 Paris, France;1. Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology, Nanjing 210094, China;2. School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
Abstract:Rates of radiationless transitions from excited to ground electronic states (internal conversion) have been directly measured for S1 benzene under collision-free conditions by detecting the vibrationally very hot ground electronic state with picosecond twocolor pump-probe absorption spectroscopy.
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