在软聚合物约束几何结构中，铝靶在激光照射下的脉冲耦合增强效应

IF 2.7 3区物理与天体物理 Q2 PHYSICS, APPLIED

Journal of Applied Physics Pub Date : 2024-09-19 DOI:10.1063/5.0225973

C. Le Bras, E. Lescoute, J-M. Chevalier, G. Boutoux, D. Hébert

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引用次数: 0

摘要

对安装在弹道摆上的目标施加激光脉冲，以研究激光冲击产生的动量。光子多普勒测速仪用于评估每个激光脉冲产生的动量。为了增加产生的动量，在目标表面涂上一层对激光波长透明的聚合物，以限制激光与物质相互作用产生的等离子体。这样产生的动量耦合系数比经典直接系统配置中同等激光参数下的动量耦合系数高出一百倍。这项研究是用一维拉格朗日流体力学代码 ESTHER 模拟实验完成的。

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Impulse coupling enhancement of aluminum targets under laser irradiation in a soft polymer confined geometry

Laser pulses were applied to a target mounted on a ballistic pendulum to study the momentum imparted by a laser shock impact. Photonic Doppler Velocimetry was used to assess the momentum imparted by each laser pulse. To increase the momentum produced, a layer of polymer transparent to the laser wavelength was applied to the surface of the targets to confine the plasma generated as a result of the laser–matter interaction. This yielded momentum coupling coefficients one hundred times higher than those obtained for equivalent laser parameters in the classical direct regime configuration. The study was completed by simulating the experiments with the one-dimensional Lagrangian hydrodynamics code ESTHER, which showed good agreement with the experimental results.

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来源期刊

Journal of Applied Physics 物理-物理：应用

CiteScore

5.40

自引率

9.40%

发文量

1534

审稿时长

2.3 months

期刊介绍： The Journal of Applied Physics (JAP) is an influential international journal publishing significant new experimental and theoretical results of applied physics research. Topics covered in JAP are diverse and reflect the most current applied physics research, including: Dielectrics, ferroelectrics, and multiferroics- Electrical discharges, plasmas, and plasma-surface interactions- Emerging, interdisciplinary, and other fields of applied physics- Magnetism, spintronics, and superconductivity- Organic-Inorganic systems, including organic electronics- Photonics, plasmonics, photovoltaics, lasers, optical materials, and phenomena- Physics of devices and sensors- Physics of materials, including electrical, thermal, mechanical and other properties- Physics of matter under extreme conditions- Physics of nanoscale and low-dimensional systems, including atomic and quantum phenomena- Physics of semiconductors- Soft matter, fluids, and biophysics- Thin films, interfaces, and surfaces