 state of a hydrogen atom by electron impact in the presence of a near resonant electromagnetic field are presented. Single photon near-resonance process is discussed. A significant increase in the excitation cross section for the atom is obtained by joint collisions with electrons and photons.
 state of a hydrogen atom by electron impact in the presence of a near resonant electromagnetic field are presented. Single photon near-resonance process is discussed. A significant increase in the excitation cross section for the atom is obtained by joint collisions with electrons and photons.