Open AccessStudy on the electrical potential signals induced by laser plasma in the target with bias-voltage
Author(s) -
Yunjing Ji,
Bian Bao-Min,
Tong Chao-Xia,
Jian Lu
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.980
Subject(s) - biasing , voltage , plasma , laser , materials science , electric field , atomic physics , physics , optics , quantum mechanics
The electrical potential signals induced by laser-plasma generated on a copper target with bias-voltage using a Nd:YAG laser (7ns) were detected, and the effect of the additional voltage on the potential signals was mainly studied. The experimental results show a single-peak distribution in the temporal profile, which is positive for negative bias voltage and negative peak when with positive bias voltage. Taking into account the effect of plasma charging and the electric field produced by the target bias-voltage, a clear explanation of the observed effect is given.