Polarization-resolved measurements of picosecond laser-ablated plumes

被引：9
|
作者：
Sharma, AK [1 ]
Thareja, RK [1 ]
机构：
[1] Indian Inst Technol, Dept Phys, Kanpur 208016, Uttar Pradesh, India
来源：
JOURNAL OF APPLIED PHYSICS | 2005年 / 98卷 / 03期
关键词：
D O I：
10.1063/1.2006973
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We discuss the ablation of aluminum plasma using picosecond pulsed laser in vacuum and in ambient atmosphere of nitrogen. The plume dynamics of picosecond and nanosecond laser-ablated plumes in ambient atmosphere is discussed. The degree of polarization is measured using optical emission spectroscopy for the A1 III transition 4s S-2(1/2)-4p P-2(3/2)o at 569.6 nm. Strong anisotropy is observed using picosecond laser pulse as compared to nanosecond laser pulse. (c) 2005 American Institute of Physics.
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页数：5
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