Ultrafast laser-matter interaction and high field science

超快激光-物质相互作用和高场科学

• 批准号: 42292-2011
• 负责人: Kieffer, JeanClaude
• 金额: $ 4.15万
• 依托单位: Institut national de la recherche scientifique
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=568892
• 关键词: Ultrafast; laser; matter; interaction; field

The proposed research program will take advantage of the unique properties of the Advanced Laser Light Source (ALLS) facility that has been developed and installed at INRS. The main goal of Prof. Kieffer program is to extend frontiers in high field physics using the relativistic intensities that can be achieved with the 200TW/50W ALLS system. This laser system exhibits simultaneously a high repetition rate (10 Hz), a short pulse duration (25 fs), a high laser pulse contrast ratio (10-10:1) and laser intensities in the focal plane above 1020 W/cm2. The applicant will pursue innovative research in the following three directions that are inter-related: A first theme focus on isochoric heating of matter at solid density up to extreme temperatures and on laser piston acceleration of matter. The specific goal is to explore the production and acceleration of hot solid plasmas slabs by irradiation of ultra-thin foils with ultra-intense and ultrashort/ultraclean laser pulses. A second theme is on the generation of ultrafast X-ray sources. The specific goal is to produce sub-hundreds femtosecond hard x-ray flash. The applicant will explore the generation of ultrafast pulse of multi-keV X-rays using electrons undergoing very non-linear dynamics effects involving the laser fields (the laser betatron effect) in gas targets and at relativistics intensities. The third area is proton acceleration by intense laser field. The specific goal is to study the acceleration of protons through radiation pressure and to characterize protons currents (spectrum, dose) with the high peak and average power ALLS system with different beam shapes, targets and interaction geometries.

拟议的研究计划将利用已开发和安装在INRS的高级激光源（ALLS）设施的独特属性。 Kieffer教授计划的主要目标是使用200TW/50W Alls System可以实现的相对论强度扩展高场物理学的前沿。该激光系统同时表现出高的重复率（10 Hz），短脉冲持续时间（25 fs），高激光脉冲对比度（10-10：1）和高于1020 W/CM2的焦平面的激光强度。申请人将在以下三个方向上进行创新研究： 第一个主题侧重于在固体密度下对物质的等距加热，直到极端温度和激光活塞的物质加速度。具体的目标是通过用超强度和超舒服/超级固定激光脉冲的超薄箔辐射来探索热等离子体平板的生产和加速。 第二个主题是关于超快X射线源的一代。具体的目标是生产不到一百秒的飞秒硬秒X射线闪光灯。申请人将使用经历非常非线性动力学效应的电子探索多击X射线的超快脉冲，涉及激光场（激光BETATRON效应）在气体目标和相对症强度下。 第三个区域是质子加速度的强度激光场。具体目标是通过辐射压力研究质子的加速度，并表征具有高峰值和平均功率全系统具有不同梁形状，目标和相互作用几何形状的质子电流（光谱，剂量）。