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光物理系列学术报告(第128期)

作者:佚名  来源:本站整理  发布时间:2016-3-16 10:48:07
 

题目:Apollon 10 PW Project

报告人:邹纪平教授,法国国家科研中心,LULI实验室

摘要:

Apollon is an upcoming laser facility which will provide 10 PW peak power pulses at a repetition rate of 1 shot/minute. To reach this extreme peak power level, Apollon will be based on the generation of extremely short pulses of 15 fs and a corresponding moderate energy of 150 J after compression. Laser intensity levels on target surpassing the barrier of 2·1022 W/cm2 will be achieved. The main 10 PW beam line will be combined with three secondary beams (a 1 PW beam, a 10 TW probe and the uncompressed beam), capable of generating ultra-intense and ultra-short sources of particles, coherent and high energetic X rays.

To meet the complete set of requirements, Apollon design is based on a hybrid OPCPA-Ti:Sapphire architecture. The OPCPA-based front-end employs state of the art technology to guarantee the generation of high quality and high temporal contrast pulses with a spectrum supporting sub-10 fs pulses. Main amplification will take place in Ti:Sapphire multi-pass amplifiers up to 300 J. A specific spectral management within the amplification chain will allow the preservation of the spectral bandwidth supporting therefore the 15 fs output pulses. The amplified beam will finally be compressed in a four grating unfolded compressor. Higher order residual spectral phase will be pre-compensated actively by a high capacity Dazzler located in the front-end. A sophisticated relay imaging configuration based on off-axis parabolic telescopes will be implemented. By use of this system associated to an optical adaptive closed-loop, an optimal beam quality, characterized by a Strehl ratio > 0.5 on target can be effectively obtained.

In this talk, the Apollon facility design, technological challenges and the current progress of the project will be presented.

简介

邹纪平: 1982年毕业于北京理工大学,1987年获得巴黎六大物理学博士学位,1989年至今在法国国家科研中心LULI实验室工作 (Laboratoire pour l’Utilisation des Lasers Intenses)并任激光及光学组负责人。


时间:2016年3月11日上午10:00

地点:中科院物理研究所M253会议室

联系人:金奎娟 研究员 (Tel:82648099)

邀请人:魏志义 研究员 (Tel:82648115)

主办单位:中国科学院光物理重点实验室

 
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