Resonant Multiphoton Ionization of a Cesium Atomic Beam by a Tunable-Wavelength Q-Switched Neodymium-Glass Laser

Abstract

The narrow spectral bandwith (0.4 A) of a Nd-glass laser was tuned over a range of 40 A to populate selectively the 6f level of cesium atoms. The resulting variation of the multiphoton ionization probability was investigated as a function of the laser wavelength.