Ionization in an intense field considering Coulomb correction

IMR OpenIR

	Ionization in an intense field considering Coulomb correction
其他题名	Ionization in an intense field considering Coulomb correction
	Li Jian 1; Huo YiNing 3; Tang ZengHua 3; Ma FengCai 3
	2017
发表期刊	CHINESE PHYSICS B
ISSN	1674-1056
卷号	26 期号:2
摘要	We derive a simple ionization rate formula for the ground state of a hydrogen atom in the velocity gauge under the conditions: omega << 1 a.u. (a.u. is short for atomic unit) and gamma << 1 (omega is the laser frequency and gamma is the Keldysh parameter). Comparisons are made among the different versions of the Keldysh-Faisal-Reiss (KFR) theory. The numerical study shows that with considering the quasi-classical (WKB) Coulomb correction in the final state of the ionized electron, the photoionization rate is enhanced compared with without considering the Coulomb correction, and the Reiss theory with the WKB Coulomb correction gives the correct result in the tunneling regime. Our concise formula of the ionization rate may provide an insight into the ionization mechanism for the ground state of a hydrogen atom.
其他摘要	We derive a simple ionization rate formula for the ground state of a hydrogen atom in the velocity gauge under the conditions: ω ? a.u. (a.u. is short for atomic unit) and γ ? (w is the laser frequency and ω is the Keldysh parameter). Comparisons are made among the different versions of the Keldysh-Faisal-Reiss (KFR) theory. The numerical study shows that with considering the quasi-classical (WKB) Coulomb correction in the final state of the ionized electron, the photoionization rate is enhanced compared with without considering the Coulomb correction, and the Reiss theory with the WKB Coulomb correction gives the correct result in the tunneling regime. Our concise formula of the ionization rate may provide an insight into the ionization mechanism for the ground state of a hydrogen atom.
关键词	strong field approximation ionization rate Coulomb potential
收录类别	CSCD
语种	英语
资助项目	[National Natural Science Foundation of China] ; [Program of Shenyang Key Laboratory of Optoelectronic Materials and Technology, China]
CSCD记录号	CSCD:5937074
引用统计	被引频次：1[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/156614
专题	中国科学院金属研究所
作者单位	1.内蒙古大学 2.中国科学院金属研究所 3.辽宁大学
推荐引用方式 GB/T 7714	Li Jian,Huo YiNing,Tang ZengHua,et al. Ionization in an intense field considering Coulomb correction[J]. CHINESE PHYSICS B,2017,26(2).
APA	Li Jian,Huo YiNing,Tang ZengHua,&Ma FengCai.(2017).Ionization in an intense field considering Coulomb correction.CHINESE PHYSICS B,26(2).
MLA	Li Jian,et al."Ionization in an intense field considering Coulomb correction".CHINESE PHYSICS B 26.2(2017).