The interaction of intense femtosecond laser pulses with rare gas clusters was studied experimentally, the time-of-flight spectra of ions from exploding clusters at different gas densities have been measured. It is found that while the relative components of ions in low and high energy of the ion energy spectrum decrease with the increase of the gas density, the average ion energies are the same for different gas densities, which indicates that the effect of gas density on laser-cluster interaction is not important under our experimental conditions.
© 2005 Chinese Optics Letters
Shaohui Li, Cheng Wang, Jiansheng Liu, Xiangxin Wang, Ruxin Li, Guoquan Ni, and Zhizhan Xu, "Interaction of intense laser pulses with atomic clusters at different gas densities," Chin. Opt. Lett. 2, 497-499 (2005)