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Itakura, Ryuji; Fushitani, Mizuho*; Hishikawa, Akiyoshi*; Sako, Tokuei*
AIP Conference Proceedings 1702, p.090021_1 - 090021_4, 2015/12
Times Cited Count:0 Percentile:0(Physics, Applied)We theoretically investigate coherent dynamics of ions created through ultrafast multichannel photoionization from a viewpoint of photoelectron-photoion correlation. The model calculation on single-photon ionization of Ar reveals that the coherent hole dynamics in Ar associated with a superposition of the spin-orbit states (J = 3/2 and 1/2) can be identified by monitoring only the photoion created by a Fourier-transform limited extreme ultraviolet (EUV) pulse with the 9-fs pulse duration, while the coherence is lost by a chirped EUV pulse. It is demonstrated that by coincidence detection of the photoelectron and photoion the coherent hole dynamics can be extracted even in the case of ionization by a chirped EUV pulse with the sufficiently wide bandwidth.
Itakura, Ryuji
no journal, ,
Photoelectron-photoion coincidence momentum imaging apparatus has been developed by our group for investigating dissociative ionization of polyatomic molecules in intense laser fields. In this talk, the experimental results on methanol and ethanol will be introduced. It has been demonstrated that the three dimensional momentum correlation between photoelectrons and photoions allows us to reveal the pathways in ionization and electronic excitation of molecules in intense laser fields.