Pathways towards probing ultrafast multi electron interactions in atoms and molecules

Laser induced electron re collision is the fundamental process behind the emerging attosecond science 1 as 1 C 1 0 18 sec In a semi classical model the electron is first ionized by the strong electromagnetic EM laser field and then it accelerates forth and back by the same alternating field to return to its parent ion with excess of kinetic energy The outcome of this re collision may split into three different