A Quantum Control Spectroscopy Approach by Direct UV Femtosecond Pulse Shaping

作者：Moehring J^*; Buckup T; Motzkus M

来源：IEEE Journal of Selected Topics in Quantum Electronics, 2012, 18(1): 449-459.

DOI：10.1109/JSTQE.2011.2138684

• Proton transfer
• ultrafast optics
• ultraviolet sources

Aquantum control spectroscopy (QCS) approach using directly shaped UV excitation pulse is demonstrated. Ultrafast tailored pulses in the region of 310-335 nm are combined with transient absorption to investigate reactive pathways in the excited state of (2,2'-bipyridyl)-3,3'-diol BP(OH)(2). In particular, we apply QCS in the disentanglement of the competing excited-state intramolecular proton-transfer (ESIPT) channels of BP(OH)(2). Our results challenge parallel reactive pathways in the excited state and suggest a newer model based on an extremely fast sequential double ESIPT process.

• 出版日期2012-2