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Angular distribution of terahertz emission from laser interactions with solid targets

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Abstract

Intense femtosecond laser-plasma interactions can produce high power terahertz radiations. In our experiment, the polished copper target was irradiated by a p-polarized laser with intensity of more than 1018 W/cm2 at an incident angle of 67.5° from the target normal. The THz energy from three different detection angles is measured. The maximum emission is found in the direction at an angle of 45° to the laser backward direction, which is more than one order of magnitude higher than in the other two directions. A simple theoretical model has been established to explain the measurements.

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Authors and Affiliations

  1. Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China

    Fei Du, Chun Li, MuLin Zhou, WeiMin Wang, LuNing Su, Yi Zheng, XuLei Ge, YuTong Li, JingLong Ma, XiaoLong Liu, Lu Zhang, ZhengMing Sheng, LiMing Chen, Xin Lu, QuanLi Dong, ZhaoHua Wang, ZhiYi Wei & Jie Zhang

  2. Key Laboratory for Laser Plasmas (Ministry of Education) and Department of Physics, Shanghai Jiao Tong University, Shanghai, 200240, China

    ZhengMing Sheng & Jie Zhang

Authors
  1. Fei Du
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  2. Chun Li
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  3. MuLin Zhou
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  4. WeiMin Wang
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  5. LuNing Su
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  6. Yi Zheng
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  7. XuLei Ge
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  8. YuTong Li
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  11. Lu Zhang
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  16. ZhaoHua Wang
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  17. ZhiYi Wei
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  18. Jie Zhang
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Corresponding authors

Correspondence to YuTong Li or Jie Zhang.

Additional information

DU Fei was born in 1985. He is now a Ph.D. candidate of Institute of Physics, Chinese Academy of Sciences. He received the Bachelor degree in Physics from Shandong University in 2007. Currently, his research interests is in the generation of terahertz radiation from laser solid target interactons.

SHENG ZhengMing received the degree of Doctor of Science from the Shanghai Institute of Optics and Fine Mechanics, CAS, in 1993. During 1995–1998, he worked in the Max-Planck Institute for Quantum Optics, Garching, as a Humboldt research fellow and the postdoctoral fellow of Max-Planck Society. During 1998–2001 he worked in the Institute of Engineering, Osaka University as the JSPS fellow and researcher of the university. Since 2001 he has been working in the Institute of Physics, CAS, as senior research scientist. Currently he is also the Changjiang professor of Shanghai Jiao Tong University.

LI YuTong is working at the Institute of Physics, Chinese Academy of Sciences. His main research interests include fast electron generation and transport relevant to fast ignition of the Inertial Confinement Fusion, MeV proton and ion generation, strong THz generation, and laboratory astrophysics. From 2000 he and his collaborators have published over 100 papers. His research has been recognized by the Chinese State Council with the Natural Sciences Prize in 2006 and Chinese Physical Society with the Wang Gan Chang Prize in 2011.

ZHANG Jie received his Ph.D. degree in 1988 at the Institute of Physics of the Chinese Academy of Sciences (CAS). Then he joined the Max-Planck-Institute for Quantenoptik in Germany. In 1990–1998, he worked for the Rutherford Appleton Laboratory and the University of Oxford in the UK. Dr. Zhang was elected the President of Association of Asia Pacific Physical Societies (AAPPS) and the member of the German Academy of Sciences Neopoldina in 2007; Academician of the Chinese Academy of Sciences in 2003. He was given TWAS Prize in Physics in 2007; the Natural Sciences Prize in 2006; the Ho Leung Ho Lee award of the Science and Technology Progress Award in 2006; etc.

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Du, F., Li, C., Zhou, M. et al. Angular distribution of terahertz emission from laser interactions with solid targets. Sci. China Inf. Sci. 55, 43–48 (2012). https://doi.org/10.1007/s11432-011-4491-5

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  • DOI: https://doi.org/10.1007/s11432-011-4491-5

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