Behavior of positive ions ejected from laser‐irradiated CdS
作者:
A. Namiki,
K. Watabe,
H. Fukano,
S. Nishigaki,
T. Noda,
期刊:
Journal of Applied Physics
(AIP Available online 1983)
卷期:
Volume 54,
issue 6
页码: 3443-3447
ISSN:0021-8979
年代: 1983
DOI:10.1063/1.332461
出版商: AIP
数据来源: AIP
摘要:
The dynamic behavior of ions ejected by pulsed nitrogen laser irradiation of the single‐crystal CdS have been ivestigated with a dynamic mass spectroscopic method. The energetic ions are generated through a process different from that of slow neutrals. The ion produced below 80 mJ/cm2laser power is created at the surface and accelerated by a Madelung potential, reaching the kinetic energy of 100 eV. At a higher power region, relatively slow cadmium ions showed a Maxwellian velocity distribution suggesting the laser‐generated gaseous plasma. Three possible mechanisms for ion formation are presented.
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