Anisotropic Energetic Ion Emission from Explosion of Intense Laser Irradiated Argon Clusters in a Jet
LI Shao-Hui1,2, WANG Cheng1, LIU Jian-Sheng1, WANG Xiang-Xin1, ZHU Pin-Pin1, LI Ru-Xin1, NI Guo-Quan1, XU Zhi-Zhan1
1Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
2Department of Physics, Shantou University, Shantou 515063
Anisotropic Energetic Ion Emission from Explosion of Intense Laser Irradiated Argon Clusters in a Jet
LI Shao-Hui1,2;WANG Cheng1;LIU Jian-Sheng1;WANG Xiang-Xin1;ZHU Pin-Pin1;LI Ru-Xin1;NI Guo-Quan1;XU Zhi-Zhan1
1Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
2Department of Physics, Shantou University, Shantou 515063
Abstract： The interaction of an intense femtosecond laser field (～ 1016W/cm2) with argon clusters in a dense jet has been studied by measuring the energy and angle distributions of emitted ions. A directional anisotropy in the ion explosion energies is observed. The experimental results indicate that the average ion energies are up to 40% in the detection direction parallel to the laser polarization higher than that perpendicular to it. The measured ion yield increases about 80%, correspondingly. The findings are interpreted by charge-dependent ion acceleration and explosion of elliptic microplasma spheres.
LI Shao-Hui;WANG Cheng;LIU Jian-Sheng;WANG Xiang-Xin;ZHU Pin-Pin;LI Ru-Xin;NI Guo-Quan;XU Zhi-Zhan. Anisotropic Energetic Ion Emission from Explosion of Intense Laser Irradiated Argon Clusters in a Jet[J]. 中国物理快报, 2004, 21(3): 481-484.
LI Shao-Hui, WANG Cheng, LIU Jian-Sheng, WANG Xiang-Xin, ZHU Pin-Pin, LI Ru-Xin, NI Guo-Quan, XU Zhi-Zhan. Anisotropic Energetic Ion Emission from Explosion of Intense Laser Irradiated Argon Clusters in a Jet. Chin. Phys. Lett., 2004, 21(3): 481-484.
2004, Vol. 21 
