Browsing Bergen Open Research Archive by Author "Simonsen, Aleksander"

Now showing items 1-2 of 2

    • Alternative gauge for the description of the light-matter interaction in a relativistic framework 

      Selstø, Sølve; Kjellsson, Tor; Lindroth, Eva; Simonsen, Aleksander; Førre, Morten (Peer reviewed; Journal article, 2017-08)
      We present a generalized velocity gauge form of the relativistic laser-matter interaction. In comparison with the (equivalent) regular minimal coupling description, this form of light-matter interaction results in superior ...

    • Ionization dynamics beyond the dipole approximation induced by the pulse envelope 

      Simonsen, Aleksander; Kjellsson, Tor; Førre, Morten; Lindroth, Eva; Selstø, Sølve (Peer reviewed; Journal article, 2016-05)
      When atoms and molecules are ionized by laser pulses of finite duration and increasingly high intensities, the validity of the much-used dipole approximation, in which the spatial dependence and magnetic component of the ...