A time‐of‐flight study of the neutral species produced by nanosecond laser etching of CuCl at 308 nm
作者:
G. N. A. van Veen,
T. Baller,
A. E. de Vries,
期刊:
Journal of Applied Physics
(AIP Available online 1986)
卷期:
Volume 60,
issue 10
页码: 3746-3749
ISSN:0021-8979
年代: 1986
DOI:10.1063/1.337585
出版商: AIP
数据来源: AIP
摘要:
A time‐of‐flight (TOF) study of the particles leaving a CuCl target after irradiation by 15 ns laser pulses at 308 nm is performed. It is shown that the ejected species are Cl, Cu, CuCl, Cu2Cl, Cu2Cl2, and Cu3Cl3. The majority of the products consists of CuCl. The TOF spectra can be fitted by the sum of two contributions: a Maxwell–Boltzmann (MB) and a Gaussian‐type (G) distribution. The MB distribution has a temperature ofT=6000 K for all masses. The average energy and the standard deviation in the energy of the G contributions are typical for every individual product. The results strongly suggest that the MB contribution is due to a single photon‐induced process, whereas the G contribution originates from a multiphoton and/or a multistep process.
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