Chin. Phys. Lett.  2004, Vol. 21 Issue (3): 481-484    DOI:
Original Articles |
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
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LI Shao-Hui, WANG Cheng, LIU Jian-Sheng et al  2004 Chin. Phys. Lett. 21 481-484
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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.
Keywords: 36.40.-c      52.50.Jm      36.40.Gk     
Published: 01 March 2004
PACS:  36.40.-c (Atomic and molecular clusters)  
  52.50.Jm (Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.))  
  36.40.Gk (Plasma and collective effects in clusters)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2004/V21/I3/0481
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LI Shao-Hui
WANG Cheng
LIU Jian-Sheng
WANG Xiang-Xin
ZHU Pin-Pin
LI Ru-Xin
NI Guo-Quan
XU Zhi-Zhan
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