Femtosecond, picosecond and nanosecond laser microablation:: Laser plasma and crater investigation

被引：5

作者：

Semerok, A ^{[1
]}

Sallé, B ^{[1
]}

Lacour, JL ^{[1
]}

Wagner, JF ^{[1
]}

Petite, G ^{[1
]}

Gobert, O ^{[1
]}

Meynadier, P ^{[1
]}

Perdrix, M ^{[1
]}

机构：

[1] CEA Saclay, DPE, SPCP, LSLA, F-91191 Gif Sur Yvette, France

来源：

ECLIM 2000: 26TH EUROPEAN CONFERENCE ON LASER INTERACTION WITH MATTER | 2001年 / 4424卷

关键词：

laser ablation; metal samples; laser plasma;

D O I：

10.1117/12.425562

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Crater shapes and plasma plume expansion in the interaction of sharply focused laser beams (10 mum waist diameter, 50 fs - 6 ns pulse duration) with metals in air at atmospheric pressure were studied. Laser ablation efficiencies and rates of plasma expansion were obtained. The best ablation efficiency was observed with femtosecond laser pulses. It was found that for nanosecond pulses the laser beam absorption, its scattering and reflection in plasma were the limiting factors for efficient laser ablation and precise material sampling with sharply focused laser beams. The experimental results obtained were analyzed with relation to different theoretical models of laser ablation.

引用

页码：574 / 579

页数：6

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