Ablation Plume Dynamics in a Background Gas

被引：3

作者：

Amoruso, Salvatore ^{[1
]}

Schou, Jorgen ^{[2
]}

Lunney, James G. ^{[3
]}

机构：

[1] Complesso Univ Monte S Angelo, Univ Naples Federico II, CNR SPIN, Via Cintia, I-80126 Naples, Italy

[2] Tech Univ Denmark, Dept Photon Engn, DK-4000 Roskilde, Denmark

[3] Trinity Coll Dublin, Sch Phys, Dublin 2, Ireland

来源：

INTERNATIONAL SYMPOSIUM ON HIGH POWER LASER ABLATION 2010 | 2010年 / 1278卷

关键词：

Laser ablation; laser plasma; shock wave; pulsed laser deposition; PLD; PULSED-LASER DEPOSITION; PROPAGATION; EXPANSION; OXYGEN; OXIDES; MODEL;

D O I：

10.1063/1.3507160

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The expansion of a plume in a background gas of pressure comparable to that used in pulsed laser deposition (PLD) has been analyzed in terms of the model of Predtechensky and Mayorov (PM). This approach gives a relatively clear and simple description of the essential hydrodynamics during the expansion. The model also leads to an insightful treatment of the stopping behavior in dimensionless units for plumes and background gases of different atomic/molecular masses. The energetics of the plume dynamics can also be treated with this model. Experimental time-of-flight data of silver ions in a neon background gas show a fair agreement with predictions from the PM-model. Finally we discuss the validity of the model, if the work done by the pressure of the background gas is neglected.

引用

页码：665 / +

页数：3

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