Attoclock using Atomic Hydrogen

30th International Conference on Photonic, Electronic, and Atomic Collisions

Satya Sainadh, U.^1 ; Xu, Han^1 ; Wang, X.^2 ; Atia-Tul-Noor^1 ; Wallace, William C.^1 ; Douguet, N.^3 ; Ivanov, Igor^4 ; Bartschat, Klaus^3 ; Kheifets, Anatoli^5 ; Sang, R.T.^1 ; Litvinyuk, Igor^1

Australian Attosecond Science Facility, Center for Quantum Dynamics, Griffith University, Brisbane

QLD, Australia^1

School of Nuclear Science and Technology, Lanzhou University, Lanzhou

730000, China^2

Department of Physics and Astronomy, Drake University, Des Moines

IA

50311, United States^3

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

500-712, Korea, Republic of^4

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

ACT

0200, Australia^5

关键词: Atomic hydrogen;    Attoseconds;    Coulomb effects;    Fs pulse;    Intensity range;    Ionized electrons;    Polarization planes;    Yukawa potentials;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/875/3/022039/pdf
DOI  :  10.1088/1742-6596/875/3/022039

来源: IOP

【 摘 要 】

Synopsis We present the results of attosecond angular streaking of atomic Hydrogen using elliptically polarized, 5.5 fs pulses that are centered around 770 nm, within the intensity range of 1.65 to 4 X 1014W/cm2. We measure angular offsets in the photo-electron momentum distribution relative to the peak of the electric field of light in the polarization plane .We find a strong agreement in these results with the solutions of complete 3D-TDSE simulations. Further, we compute the contribution of coulomb effects (between the ionized electron-parent ion) to the measured angular offsets using Yukawa potential, subtracting which yields the real tunneling delays .