Yurchenko, SN; Patchkovskii, S; Litvinyuk, IV; Corkum, PB; Yudin, GL; (2004) Laser-induced interference, focusing, and diffraction of rescattering molecular photoelectrons. PHYS REV LETT , 93 (22) , Article 223003. 10.1103/PhysRevLett.93.223003.

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Abstract

We solve the time-dependent Schrodinger equation in three dimensions for H-2(+) in a one-cycle laser pulse of moderate intensity. We consider fixed nuclear positions and Coulomb electron-nuclear interaction potentials. We analyze the field-induced electron interference and diffraction patterns. To extract the ionization dynamics we subtract the excitations to low-lying bound states explicitly. We follow the time evolution of a well-defined wave packet that is formed near the first peak of the laser field. We observe the fragmentation of the wave packet due to molecular focusing. We show how to retrieve a diffraction molecular image by taking the ratio of the momentum distributions in the two lateral directions. The positions of the diffraction peaks are well described by the classical double slit diffraction rule.

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