Investigation of plasma ablation and crater formation processes in the Prague Asterix Laser System laser facility

被引：0
|
作者：
Borodziuk, S
Kasperczuk, A
Pisarczyk, T
Gus'kov, S
Ullschmied, J
Kralikova, B
Rohlena, K
Skala, J
Kalal, M
Pisarczyk, P
机构：
[1] Inst Plasma Phys & Laser Microfus, PL-00908 Warsaw 49, Poland
[2] RAS, PN Lebedev Phys Inst, Moscow 119991, Russia
[3] AS CR, Inst Plasma Phys, Prague 18221 8, Czech Republic
[4] AS CR, Inst Phys, Prague 18221 8, Czech Republic
[5] Czech Tech Univ, Fac Nucl Sci & Phys Engn, CR-11519 Prague 1, Czech Republic
[6] Warsaw Univ Technol, Inst Comp Sci, PL-00665 Warsaw, Poland
来源：
OPTICA APPLICATA | 2004年 / 34卷 / 01期
关键词：
laser-produced plasma; interferometric measurements; crater; laser beam intensity distribution; absorption mechanism;
D O I：
暂无
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The present investigation of the processes of ablative plasma generation and formation of craters was carried out at the Prague Asterix Laser System (PALS) iodine laser facility. Experiments were performed with broad range of laser beam intensities (10(13)-10(16) W/cm(2)), focal spot radii (35-600 mum), and two laser wavelengths (gimel(1) = 1.315 mum and lambda3 = 0.438 mum). The laser beam was focused on the surface of the massive solid aluminum targets. The main goal of our study was to estimate conversion efficiency of the laser beam energy into the energy of shock waves for different mechanisms of laser beam-target interaction. The expansion of plasma generated as a result of the interaction process was observed by means of the 3-frame interferometry. Dimensions and shapes of the craters were determined using optical microscopy and wax-replica technique.
引用
收藏
页码：31 / 42
页数：12
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