Controlling Magnetic and Electric Nondipole Effects with Synthesized Two Perpendicularly Propagating Laser Fields  

作　　者：窦衍琨 方一奇 葛佩佩 刘运全 Yankun Dou;Yiqi Fang;Peipei Ge;Yunquan Liu(State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics,School of Physics,Peking University,Beijing 100871,China;Collaborative Innovation Center of Quantum Matter,Beijing 100871,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China)

机构地区：[1]State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics,School of Physics,Peking University,Beijing 100871,China [2]Collaborative Innovation Center of Quantum Matter,Beijing 100871,China [3]Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China

出　　处：《Chinese Physics Letters》2023年第3期7-12,共6页中国物理快报（英文版）

基　　金：the Key R&D Program of China(Grant No.2022YFA1604301);the National Natural Science Foundation of China(Grant Nos.92050201,92250306,and 12204018)。

摘　　要：Nondipole effects are ubiquitous and crucial in light-matter interaction.However,they are too weak to be directly observed.In strong-field physics,motion of electrons is mainly confined in transverse plane of light fields,which suppresses the significance of nondipole effects.Here,we present a theoretical study on enhancing and controlling the nondipole effect by using the synthesized two perpendicularly propagating laser fields.We calculate the three-dimensional photoelectron momentum distributions of strong-field tunneling ionization of hydrogen atoms using the classical trajectory Monte Carlo model and show that the nondipole effects are noticeably enhanced in such laser fields due to their remarkable influences on the sub-cycle photoelectron dynamics.In particular,we reveal that the magnitudes of the magnetic and electric components of nondipole effects can be separately controlled by modulating the ellipticity and amplitude of driving laser fields.This novel scenario holds promising applications for future studies with ultrafast structured light fields.

关 键 词：DIPOLE PHOTOELECTRON holds 

分 类 号：TN241[电子电信—物理电子学]