Specific features of radiation emitted upon tunnel ionisation of atoms in extremely intense laser fields

被引：2

作者：

Popruzhenko, S., V ^{[1
,2
]}

Kalymbetov, E. B. ^{[3
]}

机构：

[1] Russian Acad Sci, Prokhorov Gen Phys Inst, Ul Vavilova 38, Moscow 119991, Russia

[2] Russian Acad Sci, Inst Appl Phys, Nizhnii Novgorod 603950, Russia

[3] Natl Res Nucl Univ MEPhi, Kashirskoe Sh 31, Moscow 115409, Russia

来源：

QUANTUM ELECTRONICS | 2021年 / 51卷 / 09期

基金：

俄罗斯科学基金会;

关键词：

strong laser field; tunnel ionisation; synchrotron radiation; high-power lasers; PHYSICS;

D O I：

10.1070/QEL17615

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Radiation emitted by fast electrons in the process of multiple tunnel ionisation of heavy atoms in the focus of a laser pulse with extreme intensity exceeding 10(22) W cm(-2) is studied. It is shown that the spectral-angular distribution of emitted photons in a wide range of angles is qualitatively determined by relations of the synchrotron radiation theory. The dependences of the number and the characteristic frequency of emitted photons on the laser pulse parameters are estimated. The obtained results can be used to determine the maximum laser intensity in the focus.

引用

页码：801 / 806

页数：6

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