Influence of an electric field on near-surface processes in laser processing of metals

被引：0
|
作者：
Vasil'ev, S. V. [1 ]
Ivanov, A. Yu. [1 ]
机构：
[1] Yanka Kupala Grodno State Univ, Grodno 230023, BELARUS
来源：
QUANTUM ELECTRONICS | 2012年 / 42卷 / 02期
关键词：
laser radiation; electric field; plasma formation; gravity-capillary waves;
D O I：
10.1070/QE2012v042n02ABEH014709
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
It is shown that by varying the external electric field with different polarity from 0 to 10(6) V m(-1) in the course of laser processing with the mean radiation flux density similar to 10(6) W cm(-2) the change in the evolution features of the plasma torch at the surface of some metals (Cu, Al, Sn, Pb) at early stages is quantitative rather than qualitative. At the same time the characteristic size of the target material droplets, carried out from the irradiated zone, becomes essentially (by several times) smaller as the amplitude of the external electric field strength grows, independently of its polarity.
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页码：170 / 174
页数：5
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