Multiphoton inner-shell ionization of the carbon atom
Data(s) |
21/07/2015
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Resumo |
We apply time-dependent R-matrix theory to study inner-shell ionization of C atoms in ultra-short high-frequency light fields with a photon energy between 170 and 245 eV. At an intensity of 10<sup>17</sup> W/cm<sup>2</sup>, ionization is dominated by single-photon emission of a 2l electron, with two-photon emission of a 1s electron accounting for about 2-3% of all emission processes, and two-photon emission of 2l contributing about 0.5-1%. Three-photon emission of a 1s electron is estimated to contribute about 0.01-0.03%. Around a photon energy of 225 eV, two-photon emission of a 1s electron, leaving C<sup>+</sup> in either 1s2s2p<sup>3</sup> or 1s2p<sup>4</sup> is resonantly enhanced by intermediate 1s2s<sup>2</sup>2p<sup>3</sup> states. The results demonstrate the capability of time-dependent R-matrix theory to describe inner-shell ionization processes including rearrangement of the outer electrons. |
Formato |
application/pdf |
Identificador |
http://dx.doi.org/10.1103/PhysRevA.92.013417 http://pure.qub.ac.uk/ws/files/16331796/Multiphoton_inner_shell_ionization_of_the_carbon_atom.pdf |
Idioma(s) |
eng |
Direitos |
info:eu-repo/semantics/openAccess |
Fonte |
Rey , H F & van der Hart , H W 2015 , ' Multiphoton inner-shell ionization of the carbon atom ' Physical Review A (Atomic, Molecular, and Optical Physics) , vol 92 , no. 1 , 013417 . DOI: 10.1103/PhysRevA.92.013417 |
Tipo |
article |