High intensity laser beam wavefront diagnostics and correction at the Advanced Laser Light Source facility

A. Alexandrov, S. Fourmaux, J. Kieffer, A. Kudryashov, F. Martin, T. Ozaki, S. Payeur
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Abstract

The Advanced Laser Light Source (ALLS) is a Canadian facility consisting of several high intensity laser systems based on Ti:Sapphire technology. These lasers deliver 25–35 fs laser pulse time duration, from 1 mJ up to 5 J energy per pulse, high repetition rate from 10 Hz to 5 kHz, and up to 200 TW of instantaneous power or 50 W of average power. The aim of this facility is, first to produce laser based radiation source ranging from THz up to the hard x-ray and acceleration of high energy particles; second to develop and optimize such laser based sources and study their potential applications in field such as biomedical imaging, time resolved x-ray spectroscopy or molecular imaging. We will present the laser beams wavefront diagnostics and the correction methods by means of deformable mirrors used at ALLS.
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先进激光光源设备的高强度激光束波前诊断和校正
先进激光光源(ALLS)是加拿大的一个设施,由几个基于Ti:蓝宝石技术的高强度激光系统组成。这些激光器提供25 - 35fs的激光脉冲时间,从每脉冲1兆焦耳到5焦能量,高重复率从10赫兹到5千赫,高达200太瓦的瞬时功率或50瓦的平均功率。该设施的目标是,首先产生从太赫兹到硬x射线的激光辐射源和高能粒子的加速;二是开发和优化激光光源,研究其在生物医学成像、时间分辨x射线光谱学或分子成像等领域的潜在应用。本文将介绍利用可变形镜对激光光束进行波前诊断和校正的方法。
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