强场X射线激光物理  

High field X-ray laser physics

作　　者：沈百飞 吉亮亮[2] 张晓梅 步志刚 徐建彩 Shen Bai-Fei;Ji Liang-Liang;Zhang Xiao-Mei;Bu Zhi-Gang;Xu Jian-Cai(Mathematics&Science College,Shanghai Normal University,Shanghai 200234,China;State Key Laboratory of High Field Laser Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China)

机构地区：[1]上海师范大学数理学院,上海200234 [2]中国科学院上海光学精密机械研究所,强场激光物理国家重点实验室,上海201800

出　　处：《物理学报》2021年第8期55-72,共18页Acta Physica Sinica

摘　　要：相干X光,特别是X射线自由电子激光技术的发展提供了一种新的产生超强光场的途径.由于其较高的光子能量、高峰值功率密度与超短的脉冲长度,有望将强场激光物理从可见光波段推进到X光波段.目前,基于X射线的非线性原子分子物理已取得了初步进展,随着X射线光强的提升,相互作用将进入相对论物理、强场量子电动力学(quantum electrodynamics,QED)物理等领域,为激光驱动加速与辐射、QED真空、暗物质的产生与探测等带来新的科学发现机会.本文对强场X射线激光在固体中的尾场加速、真空极化、轴子的产生与探测等方面进行介绍,旨在阐明X射线波段强场物理在若干基础前沿与关键应用方面的独特优势,并对未来的发展方向进行展望.Development of coherent X-ray source, especially X-ray free electron laser(XFEL), offers a new approach to reaching a strong X-ray field. High field laser physics will extend from optical to X-ray regime since the Xray beam has high photon energy, high intensity and ultrashort pulse duration. Till now, nonlinear atomic physics and nonlinear molecular physics have been explored based on intense X-ray beam sources. They will extend to relativistic physics and quantum electrodynamics(QED) physics area with X-ray intensity increasing,and thus offering a new opportunity to innovatively investigate the particle acceleration and radiation, QED vacuum, dark matter generation and vacuum birefringence. This review provides an overview of the wake field acceleration, vacuum birefringence as well as axion generation and detection based on strong X-ray laser field.Intense X-ray pulse will show unique potential both in basic science and in practical applications. Finally, an outlook for the future development and perspectives of high-field X-ray physics is described.The invention of chirped pulse amplification results in the generation of the light intensity in the relativistic regime(> 1018 W/cm2). Laser-plasma interaction in this regime motivates multiple disciplines such as laser-driven particle acceleration, laser secondary radiation sources, strong-field physics, etc. While petawatt(PW) lasers have been established in various institutions, several projects of building 10 PW or even 100 PW lasers are proposed. However, pushing the laser power to the next level(EW) confronts significant challenges.Current technology is approaching to its limit in producing large aperture size optics due to the damage threshold of optical material. Alternatively, plasma is considered as a potential medium to amplify or compress laser pulses. This requires further validation in future studies.In recent years, XFEL has made significant progress of producing high brightness light sources. Based on self-amplified spontaneous emission(SASE) or se

关 键 词：X射线激光及探测 强场激光物理 粒子加速与辐射 量子电动力学物理 暗物质探测 

分 类 号：O434.1[机械工程—光学工程]