High Power Laser Science and Engineering, 2019, 7 (1): 010000e6, Published Online: Mar. 26, 2019   

Study of backward terahertz radiation from intense picosecond laser–solid interactions using a multichannel calorimeter system Download: 515次

Author Affiliations
1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
2 Key Laboratory for Laser Plasmas (MoE) and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
3 Central Laser Facility, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, UK
4 Department of Physics, SUPA, University of Strathclyde, Glasgow G4 0NG, UK
5 Department of Physics, York Plasma Institute, University of York, Heslington, York YO10 5DD, UK
6 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
7 Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
8 Space Science Department, STFC Rutherford Appleton Laboratory, Didcot OX11 0QX, UK
Abstract
A multichannel calorimeter system is designed and constructed which is capable of delivering single-shot and broad-band spectral measurement of terahertz (THz) radiation generated in intense laser–plasma interactions. The generation mechanism of backward THz radiation (BTR) is studied by using the multichannel calorimeter system in an intense picosecond laser–solid interaction experiment. The dependence of the BTR energy and spectrum on laser energy, target thickness and pre-plasma scale length is obtained. These results indicate that coherent transition radiation is responsible for the low-frequency component (${<}$1 THz) of BTR. It is also observed that a large-scale pre-plasma primarily enhances the high-frequency component (${>}$3 THz) of BTR.

H. Liu, G.-Q. Liao, Y.-H. Zhang, B.-J. Zhu, Z. Zhang, Y.-T. Li, G. G. Scott, D. Rusby, C. Armstrong, E. Zemaityte, P. Bradford, N. Woolsey, P. Huggard, P. McKenna, D. Neely. Study of backward terahertz radiation from intense picosecond laser–solid interactions using a multichannel calorimeter system[J]. High Power Laser Science and Engineering, 2019, 7(1): 010000e6.

本文已被 2 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!