Transverse electron momentum distribution in tunneling and over the barrier ionization by strong-field laser pulses

29th International Conference on Photonic, Electronic, and Atomic Collisions

Calvert, J.E.^1 ; Goodall, S.^1 ; Wang, X.^1 ; Xu, Han^1 ; Palmer, A.J.^1 ; Ivanov, I.A.^2,3 ; Kheifets, A.S.^3 ; Kielpinski, D.^1 ; Litvinyuk, I.V.^1 ; Sang, R.T.^1

School of Natural Sciences, Centre for Quantum Dynamics, Griffith University, Nathan

QLD

4111, Australia^1

Centre for Relativistic Laser Science, Institute for Basic Science, Gwangju

500-712, Korea, Republic of^2

Research School of Physics and Engineering, Australian National University, Canberra

ACT

0200, Australia^3

关键词: Electron momentum;    Electron momentum distribution;    Light pulse;    Polarization state;    Strong field;    Tunneling regime;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/9/092073/pdf
DOI  :  10.1088/1742-6596/635/9/092073

来源: IOP

【 摘 要 】

We present the results of an investigation of the measurement of the transverse electron momentum (TEMD) distribution of atoms ionized though the interaction of strong-field light pulses of varying ellipticity. We show though experiment and theory that the TEMD for the tunneling regime and the over-the-barrier regime (OB) evolves in a qualitatively different way when polarization state of the ionizing laser changes ellipticity.