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Electron photoemission from sodium and carbon clusters

Abstract : Photoangular distributions (PAD) and spectra (PES) of electrons emitted from clusters after excitation with linearly polarized femtosecond laser pulses or with instantaneous boost are calculated theoretically in the framework of time-dependent density-functional theory. The studied finite systems are small sodium clusters, carbon chains C_N (N = 3, 5, 7), and the famous buckminsterfullerene C_60. The behaviour of emission observables is explored as a function of size, shape, electronic and ionic structure of the considered systems and as a function of laser parameters. Moreover, schemes for determination of the PAD of an ensemble of randomly orientated molecules and clusters are elaborated. The TDDFT results are compared to stationary models and experimental data. Ionization mechanisms are studied in one- as well as multiphoton regime.
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Contributor : Philipp Wopperer <>
Submitted on : Tuesday, September 10, 2013 - 3:50:36 PM
Last modification on : Friday, April 10, 2020 - 10:46:12 AM
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  • HAL Id : tel-00860445, version 1


Philipp Wopperer. Electron photoemission from sodium and carbon clusters. Atomic and Molecular Clusters [physics.atm-clus]. Université Paul Sabatier - Toulouse III; Universität Erlangen-Nürnberg, 2013. English. ⟨tel-00860445⟩



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