| Original Articles |
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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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| Cite this article: |
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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.
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| Keywords:
36.40.-c
52.50.Jm
36.40.Gk
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Published: 01 March 2004
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| PACS: |
36.40.-c
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(Atomic and molecular clusters)
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52.50.Jm
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(Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.))
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36.40.Gk
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(Plasma and collective effects in clusters)
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Abstract
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