Signatures of tunneling and multiphoton ionization by short-laser pulses: The partial-wave distribution. (November 2015)

• Record Type: Journal Article
• Authors: Arbó, Diego G; Lemell, Christoph; Burgdörfer, Joachim
• Is Part Of: Journal of physics. Number 635(2015)
• Publication Date: 2015-11
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/635/1/012003
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: We analyze the two-dimensional angular momentum-energy distribution of electrons emitted from argon by short laser pulses. We identify characteristic features of both multiphoton and tunneling ionization in the partial-wave distribution for Keldysh parameters close to unity. We observe a remarkable degree of quantum-classical correspondence in the photoinization process which becomes even more pronounced after intensity averaging over the focal volume. We derive an energy-dependent cut-off for the highest angular momentum accessible within the framework of the strong-field approximation, which accurately reproduces the partial wave distributions found from solutions of the time-dependent Schrödinger equation.