Tracking ultrafast dynamics by sub-20-fs UV pulses generated in the lab open atmosphere

Álvaro Peralta Conde,Iker Lamas, Marina Sánchez Albaneda,Cruz Méndez,Asier Longarte,Raúl Montero

Chemical Physics Letters（2023）

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摘要

•Sub-20 fs pulses at 264 nm are generated in an air-plasma filament formed directly in the lab open atmosphere.•The pulses are used to track the electronic relaxation of naphthalene, excited to the S2 state, with 28 fs resolution.•The transients recorded exhibit a complex beating pattern that reflects the S2/S1 non-adiabatic coupling.

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关键词

Sub-20 fs UV pulses,Electronic relaxation,Non-adiabatic coupling,Conical intersection,Wavepacket,Electronic coherence

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