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Updated: Feb 16, 2026

An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers
Published on: October 23, 2018
Note: Ultraviolet photodissociation dynamics of o-bromofluorobenzene in 234-267 nm
Min Chen1, Chao He1, Xilin Bai1
1CAS Center for Excellence in Quantum Information and Quantum Physics, Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.
Abstract:
Photodissociation dynamics of o-bromofluorobenzene in the 234-267 nm range has been experimentally investigated using the DC-slice velocity map imaging technique. It is found that Br(2P3/2) atoms produced from repulsive singlet state surfaces via excitation of one or more 1ππ* excited states dominate the Br photofragments. The quantum yield of spin-orbit excited Br(2P1/2) atoms was found to be only ∼0.02, indicating weak spin-orbit couplings in the low-lying electronic states of o-bromofluorobenzene.
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