| ATOMIC AND MOLECULAR PHYSICS |
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Visible Light Emission in Highly Charged Kr17+ Ions Colliding with an Al Surface |
| YANG Zhi-Hu1**, XU Qiu-Mei1, GUO Yi-Pan1,2, WU Ye-Hong1,2, SONG Zhang-Yong1 |
1Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
2Graduate University of Chinese Academy of Sciences, Beijing 100049
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| Cite this article: |
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YANG Zhi-Hu, XU Qiu-Mei, GUO Yi-Pan et al 2013 Chin. Phys. Lett. 30 013201 |
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Abstract We report light emission during the bombardment of Kr ions on an Al surface in the wavelength range 300–700 nm. The three spectral lines of the sputtered Al atoms belong to transitions of Al I – at 309.26, Al I –4s 2S1/2 at 394.72 and Al I 3p 2Po3/2–4s 2S1/2 at 396.50 nm. During the neutralization process, the seven spectral lines of Kr I and Kr II from the incident ion of Kr17+ attribute to transitions of Kr I 5p 2[3/2]2–7d 2[1/2]o1 at 616.33, Kr II 5s 2D5/2–5p 2Do3/2 at 410.86, Kr II 5p 4Po5/2–6s 4P5/2 at 430.58, Kr II 4d 2D3/2–4f 2[3]o5/2 at 434.42, Kr II 4d 4D1/2–5p 2So1/2 at 485.80, Kr II 4p 4S3/2–6s 4Po3/2 at 618.57 and Kr II 5p 4Po3/2–4d 2D5/2 at 656.41 nm. Light emissions of sputtered species depend on energy of the incident ions deposited on the target surface atoms. Light emissions of the neutralized projectiles are formed due to many electrons of the conduction band of the solid surface captured in excited states of the incident ion.
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Received: 29 August 2012
Published: 04 March 2013
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