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Article Dans Une Revue Physical Review A : Atomic, molecular, and optical physics [1990-2015] Année : 2017

Isolating strong-field dynamics in molecular systems

Résumé

Strong-field ionization followed by recollision provides a unique pump-probe measurement which reveals a range of electronic processes, combining sub-Angstrom spatial and attosecond temporal resolution. A major limitation of this approach is imposed by the coupling between the spatial and temporal degrees of freedom. In this paper we focus on the study of high harmonic generation and demonstrate the ability to isolate the internal dynamics—decoupling the temporal information from the spatial one. By applying an in situ approach we reveal the universality of the intrinsic pump-probe measurement and establish its validity in molecular systems. When several orbitals are involved we identify the fingerprint of the transition from the single-channel case into the multiple-channel dynamics, where complex multielectron phenomena are expected to be observed
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hal-01561682 , version 1 (13-07-2017)

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Oren Orenstein, Oren Pedatzur, Ayelet J. Uzan, Barry D. Bruner, Yann Mairesse, et al.. Isolating strong-field dynamics in molecular systems. Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2017, 95 (5), pp.051401. ⟨10.1103/PhysRevA.95.051401⟩. ⟨hal-01561682⟩

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