Breakdown of the electric dipole approximation at cooper minima in direct two-photon ionisation

HIGHLIGHTS

• who: J. Hofbrucker from the Institut have published the article: Breakdown of the electric dipole approximation at Cooper minima in direct two-photon ionisation, in the Journal: Scientific Reports Scientific Reports of 19/07/2019
• what: To demonstrate the breakdown of the electron-dipole approximation on examples, the authors propose similar conditions as considered in the recent experiments, where either ion5-8, or fluorescence10-14 yields were detected as a signature of two-photon K shell ionisation. In the examples below, the authors show that numerical calculation carried out beyond the dipole approximation reveals breakdown . . .
  

   

  

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