PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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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. 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 |
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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.
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Received: 13 July 2015
Revised: 06 November 2015
Accepted manuscript online:
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PACS:
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52.38.-r
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(Laser-plasma interactions)
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52.38.Mf
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(Laser ablation)
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52.70.-m
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(Plasma diagnostic techniques and instrumentation)
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52.70.La
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(X-ray and γ-ray measurements)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11304235) and the Director Fund of WNLO, China. |
Corresponding Authors:
Xin-Bing Wang
E-mail: xbwang@hust.edu.cn
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Cite this article:
Hui Lan(兰慧), Xin-Bing Wang(王新兵), Du-Luo Zuo(左都罗) Spectral and ion emission features of laser-produced Sn and SnO2 plasmas 2016 Chin. Phys. B 25 035202
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