Programme

P.47 -- Poster, VCTP-46

Date: Wednesday, 6 October 2021

Time: 08:30 - 10:00

Controlling the nonsequential double ionization process of argon atom induced by the orthogonal two-color laser pulse

Thu D H Truong (1,2,3), Hanh H Nguyen (3), Mi A Quach (1), Hanh T Tran (3), Huy Q Pham (3) and Vinh N T Pham (3)

(1) University of Science, Ho Chi Minh City, Vietnam; (2) Vietnam National University, Ho Chi Minh City, Vietnam; (3) Ho Chi Minh City University of Education, Ho Chi Minh City, Vietnam

Using the classical three-dimensional ensemble model, we simulate the correlated two-electron momentum distribution induced by the orthogonal two-color laser field consisting of 800-nm and 400-nm pulses. The laser intensities are $2.5\times {{10}^{14}}$ W/cm$^2$. It is found that the recollision time of the first ionized electron strongly depends on the relative phase of two laser pulses which results in the distinction of the correlated two-electron momentum distribution. Therefore, the orthogonal two-color laser pulse plays a crucial role in controlling the nonsequential double ionization process of the atom. In addition, the dependence of ionization mechanisms is also investigated in this work.

Presenter: Truong Dang Hoai Thu