中国物理B ›› 2016, Vol. 25 ›› Issue (3): 35202-035202.doi: 10.1088/1674-1056/25/3/035202

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

Spectral and ion emission features of laser-produced Sn and SnO2 plasmas

Hui Lan(兰慧), Xin-Bing Wang(王新兵), Du-Luo Zuo(左都罗)   

  1. 1. School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China;
    2. School of Physics and Information Engineering, Jianghan University, Wuhan 430056, China;
    3. Wuhan National Laboratory for Optoelectronics (WNLO), Wuhan 430074, China
  • 收稿日期:2015-07-13 修回日期:2015-11-06 出版日期:2016-03-05 发布日期:2016-03-05
  • 通讯作者: Xin-Bing Wang E-mail:xbwang@hust.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11304235) and the Director Fund of WNLO, China.

Spectral and ion emission features of laser-produced Sn and SnO2 plasmas

Hui Lan(兰慧)1,2, Xin-Bing Wang(王新兵)3, Du-Luo Zuo(左都罗)3   

  1. 1. School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China;
    2. School of Physics and Information Engineering, Jianghan University, Wuhan 430056, China;
    3. Wuhan National Laboratory for Optoelectronics (WNLO), Wuhan 430074, China
  • Received:2015-07-13 Revised:2015-11-06 Online:2016-03-05 Published:2016-03-05
  • Contact: Xin-Bing Wang E-mail:xbwang@hust.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11304235) and the Director Fund of WNLO, China.

摘要: We have made a detailed comparison of the atomic and ionic debris, as well as the emission features of Sn and SnO2 plasmas under identical experimental conditions. Planar slabs of pure metal Sn and ceramic SnO2 are irradiated with 1.06 μm, 8 ns Nd:YAG laser pulses. Fast photography employing an intensified charge coupled device (ICCD), optical emission spectroscopy (OES), and optical time of flight emission spectroscopy are used as diagnostic tools. Our results show that the Sn plasma provides a higher extreme ultraviolet (EUV) conversion efficiency (CE) than the SnO2 plasma. However, the kinetic energies of Sn ions are relatively low compared with those of SnO2. OES studies show that the Sn plasma parameters (electron temperature and density) are lower compared to those of the SnO2 plasma. Furthermore, we also give the effects of the vacuum degree and the laser pulse energy on the plasma parameters.

关键词: laser-produced plasma, Nd:YAG laser, ion emission, extreme ultraviolet emission

Abstract: We have made a detailed comparison of the atomic and ionic debris, as well as the emission features of Sn and SnO2 plasmas under identical experimental conditions. Planar slabs of pure metal Sn and ceramic SnO2 are irradiated with 1.06 μm, 8 ns Nd:YAG laser pulses. Fast photography employing an intensified charge coupled device (ICCD), optical emission spectroscopy (OES), and optical time of flight emission spectroscopy are used as diagnostic tools. Our results show that the Sn plasma provides a higher extreme ultraviolet (EUV) conversion efficiency (CE) than the SnO2 plasma. However, the kinetic energies of Sn ions are relatively low compared with those of SnO2. OES studies show that the Sn plasma parameters (electron temperature and density) are lower compared to those of the SnO2 plasma. Furthermore, we also give the effects of the vacuum degree and the laser pulse energy on the plasma parameters.

Key words: laser-produced plasma, Nd:YAG laser, ion emission, extreme ultraviolet emission

中图分类号:  (Laser-plasma interactions)

  • 52.38.-r
52.38.Mf (Laser ablation) 52.70.-m (Plasma diagnostic techniques and instrumentation) 52.70.La (X-ray and γ-ray measurements)