title: Three-photon excitation of hydrogen Rydberg states.
abstract: A three-photon process using radiation at 2430 and 3660 A and with a 1s-2s two-photon resonance is used to excite atomic hydrogen from the ground state to Rydberg states of high principal quantum number. Collision-induced ionization is used to monitor the excitation.
authors.forename: W L
authors.initials: WL
authors.lastname: Glab
authors.forename: M H
authors.initials: MH
authors.lastname: Nayfeh