| Anisotropic Energetic Ion Emission from Explosionof Intense Laser Irradiated Argon Clusters in a Jet |
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| 作者姓名： | 李邵辉 王成 刘建胜 王向欣 朱频频 李儒新 倪国权 徐至展 |
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| 作者单位： | [1]LaboratoryforHighIntensityOptics,ShanghaiInstituteofOpticsandFineMechanics,ChineseAcademyofSciences,Shanghai201800 [2]DepartmentofPhysics,ShantouUniversity,Shantou515063 |
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| 摘 要： | The interaction of an intense femtosecond laser field (～ 10^16 W/cm^2) 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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| 关 键 词： | 各向异性高能离子发射 激光照射 氩线束 飞秒激光场 角度分布 能量分布 离子物理 |
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