Analyses of the plasma generated by laser irradiation on sputtered target for determination of the thickness used for plasma generation

Masafumi Kumaki, Shunsuke Ikeda, Yasuhiro Fuwa, David Cinquegrani, Megumi Sekine, Naoya Munemoto, Takeshi Kanesue, Masahiro Okamura, Masakazu Washio

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In Brookhaven National Laboratory, laser ion source has been developed to provide heavy ion beams by using plasma generation with 1064 nm Nd:YAG laser irradiation onto solid targets. The laser energy is transferred to the target material and creates a crater on the surface. However, only the partial material can be turned into plasma state and the other portion is considered to be just vaporized. Since heat propagation in the target material requires more than typical laser irradiation period, which is typically several ns, only the certain depth of the layers may contribute to form the plasma. As a result, the depth is more than 500 nm because the base material Al ions were detected. On the other hand, the result of comparing each carbon thickness case suggests that the surface carbon layer is not contributed to generate plasma.

Original languageEnglish
Article number02B925
JournalReview of Scientific Instruments
Volume85
Issue number2
DOIs
Publication statusPublished - 2014 Feb 1

ASJC Scopus subject areas

  • Instrumentation

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