High-harmonic transient grating spectroscopy of NO2 electronic relaxation.
作者： H. Ruf , C. Handschin , A. Ferré , N. Thiré , J. B. Bertrand
DOI: 10.1063/1.4768810
关键词:
摘要: We study theoretically and experimentally the electronic relaxation of NO2 molecules excited by absorption one ∼400 nm pump photon. Semiclassical simulations based on trajectory surface hopping calculations are performed. They predict fast oscillations character around intersection ground first diabatic states. An experiment high-order harmonic transient grating spectroscopy reveals dynamics occurring same time scale. A systematic detected is conducted to investigate possible influence intensity, wavelength, rotational temperature molecules. The quantitative agreement between measured predicted shows that, in NO2, high encodes vibrational underlying relaxation.
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