Abstract

A three-photon process using radiation at 2430 and 3660 Å 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.

© 1983 Optical Society of America

Excitation and ionization of hydrogen Rydberg states in a plasma

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