Emergence of a higher energy structure in strong field ionization with inhomogeneous electric fields

0479075 - FZÚ 2018 RIV US eng J - Článek v odborném periodiku
Ortmann, L. - Perez-Hernandez, J. A. - Ciappina, Marcelo F. - Schoetz, J. - Chacon, A. - Zeraouli, G. - Kling, M.F. - Roso, L. - Lewenstein, M. - Landsman, A.S.
Emergence of a higher energy structure in strong field ionization with inhomogeneous electric fields.
Physical Review Letters. Roč. 119, č. 5 (2017), s. 1-5, č. článku 053204. ISSN 0031-9007. E-ISSN 1079-7114
Grant CEP: GA MŠMT EF15_008/0000162; GA MŠMT LQ1606
GRANT EU: European Commission(XE) 654148 - LASERLAB-EUROPE
Grant ostatní: ELI Beamlines(XE) CZ.02.1.01/0.0/0.0/15_008/0000162
Institucionální podpora: RVO:68378271
Klíčová slova: radiation, * nanospheres, * laserfield
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 8.839, rok: 2017

Studies of strong field ionization have historically relied on the strong field approximation, which neglects all spatial dependence in the forces experienced by the electron after ionization. More recently, the small spatial inhomogeneity introduced by the long-range Coulomb potential has been linked to a number of important features in the photoelectron spectrum, such as Coulomb asymmetry, Coulomb focusing, and the low energy structure. Here, we demonstrate using midinfrared laser wavelength that a time-varying spatial dependence in the laser electric field, such as that produced in the vicinity of a nanostructure, creates a prominent higher energy peak.
Trvalý link: http://hdl.handle.net/11104/0275096