Cluster ion control by femtosecond laser ablation with preirradiation of low intensity UV laser pulse

摘要

Generation of the multiply charged ions and molecular ions have been investigated using synchronous irradiation of high intensity and ultrashort pulse of Ti:sapphire laser and fourth harmonics of Q-switched nanosecond pulse of Nd:YAG laser to carbon target The ion current wave forms have been analyzed by means of the time-of-flight mass measurement. The formations of cluster ions were delected due to the irradiations of both high intensity and ultrashort pulse of Ti:sapphire laser and fourth harmonics of Q-switched nanosecond pulse of Nd:YAG laser.