The effects of pulse duration on ablation pressure driven by laser radiation

2015 ◽  
Vol 117 (12) ◽  
pp. 125904 ◽  
Author(s):  
Lei Zhou ◽  
Xiao-Ya Li ◽  
Wen-Jun Zhu ◽  
Jia-Xiang Wang ◽  
Chang-Jian Tang
Keyword(s):  
Laser Radiation ◽  
Pulse Duration ◽  
Ablation Pressure ◽  
Pressure Driven

The direct measurement of ablation pressure driven by 351-nm laser radiation

2011 ◽  
Vol 110 (7) ◽  
pp. 073110 ◽  
Author(s):  
D. E. Fratanduono ◽  
T. R. Boehly ◽  
P. M. Celliers ◽  
M. A. Barrios ◽  
J. H. Eggert ◽  
...  
Keyword(s):  
Laser Radiation ◽  
Direct Measurement ◽  
Ablation Pressure ◽  
Pressure Driven

Ablation Pressure Driven by an Energetic Electron Beam in a Dense Plasma

2012 ◽  
Vol 109 (25) ◽  
Author(s):  
S. Gus’kov ◽  
X. Ribeyre ◽  
M. Touati ◽  
J.-L. Feugeas ◽  
Ph. Nicolaï ◽  
...  
Keyword(s):  
Electron Beam ◽  
Dense Plasma ◽  
Energetic Electron ◽  
Ablation Pressure ◽  
Pressure Driven

scholarly journals Double layer acceleration by laser radiation

2014 ◽  
Vol 32 (2) ◽  
pp. 211-216 ◽  
Author(s):  
Shalom Eliezer ◽  
Noaz Nissim ◽  
José Maria Martínez Val ◽  
Kunioki Mima ◽  
Heinrich Hora
Keyword(s):  
Laser Radiation ◽  
Pulse Duration ◽  
Double Layer ◽  
Radiation Pressure ◽  
Ponderomotive Force ◽  
Acceleration Process ◽  
Laser Target ◽  
Target Interaction ◽  
Rayleigh Taylor Instability ◽  
Rt Instability

AbstractIt is shown that it is possible to accelerate micro-foils to velocities from 108 cm/s up to relativistic velocities without the disturbance of the Rayleigh-Taylor instability. The acceleration occurs due to the radiation pressure of proper high power lasers. In these systems, the ablation force is negligible relative to the ponderomotive force that dominates the acceleration. The laser irradiances of 1017 W/cm2 < IL < 1021 W/cm2 with a pulse duration of the order of 10 picoseconds can accelerate a micro-foil by the laser radiation pressure to velocities as high as 109 cm/s before breaking by Rayleigh Taylor (RT) instability. Similarly, laser irradiances of IL > 1021 W/cm2 with pulse duration of the order of 10 femtoseconds can accelerate a micro-foil to relativistic velocities without RT breaking. Due to the nature of the accelerating ponderomotive force, in both the relativistic and non-relativistic cases, the structure of the accelerated target contains a double layer (DL) at the interface of the laser-target interaction. The DL acts as a piston during the acceleration process. The influence of the DL surface tension on the RT instability is also analyzed in this paper.

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