Generation of ultra-intense gamma-ray train by QED harmonics

CORC > 上海光学精密机械研究所 > 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

	Generation of ultra-intense gamma-ray train by QED harmonics
	Zhang, Lingang; Liu, Chen; Shen, Baifei; Zhang, Xiaomei; Ji, Liangliang; Wang, Wenpeng; Xu, Jiancai; Zhao, Xueyan; Yi, Longqing; Shi, Yin
刊名	Phys. Plasmas
	2016
卷号	23 期号:8
通讯作者	bfshen@mail.shcnc.ac.cn ; zhxm@siom.ac.cn
英文摘要	In nonlinear media, photons may combine into a photon of energy and momentum of all those photons. This process, called harmonic generation, happens in nonlinear crystal, gas, and relativistic plasma. When the laser intensity reaches 10 22 W/cm(2), QED effects appear and play a significant role in the harmonic generation. In contrast to the gas and relativistic high-order harmonic generation processes, harmonics influenced by QED effects are usually not coherent because of the characteristic of random radiation, while the property of high intensity and ultra-short duration is conserved. In this work, the generation of high-order harmonics with QED effects is investigated by one-and two-dimensional particle-in-cell simulations. Studies have shown that interacting with a laser pulse with the intensity of I = 5: 35 x 10(23) W/cm(2), such harmonics can produce ultra-short gamma-ray train with periodic structures. The period of gamma-ray train is half of the laser period, and the peak intensity is 1: 4 x 10(22) W/cm(2) from one-dimensional simulation when ions are considered immobile. This new harmonic production with QED effects are crucial to light-matter interaction in strong field and can be verified in experiments by 10 PW laser facilities in the near future. Published by AIP Publishing.
收录类别	SCI
资助信息	Ministry of Science and Technology [2011CB808104]; National Natural Science Foundation of China [61221064, 11374319, 11125526, 11335013, 11127901]
WOS记录号	WOS:000383878100084
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/28626]
专题	上海光学精密机械研究所_强场激光物理国家重点实验室
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	Zhang, Lingang,Liu, Chen,Shen, Baifei,et al. Generation of ultra-intense gamma-ray train by QED harmonics[J]. Phys. Plasmas,2016,23(8).
APA	Zhang, Lingang.,Liu, Chen.,Shen, Baifei.,Zhang, Xiaomei.,Ji, Liangliang.,...&Xu, Zhizhan.(2016).Generation of ultra-intense gamma-ray train by QED harmonics.Phys. Plasmas,23(8).
MLA	Zhang, Lingang,et al."Generation of ultra-intense gamma-ray train by QED harmonics".Phys. Plasmas 23.8(2016).