Time-Resolved Investigation of Ionization of Clusters Irradiated by a Strong Laser
LIU Jian-Sheng1,2, LI Ru-Xin1, WANG Cheng1, LI Shao-Hui1, WANG Xiang-Xin1, ZHU Pin-Pin1, ZENG Zhi-Nan1, NI Guo-Quan1, XU Zhi-Zhan1, LIU Jing-Ru2
1Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
2Northwest Institute of Nuclear Technology, Xi’an 710024
Time-Resolved Investigation of Ionization of Clusters Irradiated by a Strong Laser
1Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
2Northwest Institute of Nuclear Technology, Xi’an 710024
Abstract： Ionization dynamics of clusters irradiated by chirped femtosecond lasers is investigated by using a linearly chirped pulse spectral interferometry with a time resolution of less than 100 fs. The production of an average charged ～Xe18+ and ～Kr9+ ions indicates a strong energy coupling between laser and cluster. Ultrafast depletion of the probing laser is observed to be strictly coincident with the ionization front as seen in other experiments. Moreover, a two-step ionization process for Xe and Kr clusters irradiated by high-intensity lasers has been observed, which implies the role of resonance enhancement during the cluster explosion.
LIU Jian-Sheng;LI Ru-Xin;WANG Cheng;LI Shao-Hui;WANG Xiang-Xin;ZHU Pin-Pin;ZENG Zhi-Nan;NI Guo-Quan;XU Zhi-Zhan;LIU Jing-Ru. Time-Resolved Investigation of Ionization of Clusters Irradiated by a Strong Laser[J]. 中国物理快报, 2003, 20(9): 1492-1495.
LIU Jian-Sheng, LI Ru-Xin, WANG Cheng, LI Shao-Hui, WANG Xiang-Xin, ZHU Pin-Pin, ZENG Zhi-Nan, NI Guo-Quan, XU Zhi-Zhan, LIU Jing-Ru. Time-Resolved Investigation of Ionization of Clusters Irradiated by a Strong Laser. Chin. Phys. Lett., 2003, 20(9): 1492-1495.
2003, Vol. 20 
