Programme

P.21 -- Poster, VCTP-44

Date: Tuesday, 30 July 2019

Time: 08:30 - 10:00

Controlling the recolliding properties in nonsequential double ionization by orthogonal two-color laser field

Truong Thu D. H. (1), Duc Anh Dinh (2), T. V. N. Hao (3), Vinh N. T. Pham (1)

(1) Ho Chi Minh City University of Education, Ho Chi Minh City 748342, Vietnam; (2) NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam; Faculty of Physics, University of Education, Hue University, 34 Le Loi Street, Hue City, Vietnam

As the relative phase between two orthogonal laser fields is varied, the correlated two-electron momentum distribution exhibits strong fluctuation. In this study, we deeply investigate the nonsequential double ionization process of atom to give insight into the microscopic mechanisms of associating recollision process. The results indicate that the strong dependence of two-electron momentum distribution on relative phase of laser fields strongly stems from the different properties of recolliding electrons. All vital characteristic of the returning bunch of electrons such as returning moment, energy, as well as the possibility of energy sharing via the recollision are well controlled by changing the relative phase of laser field. This technique is experimentally straightforward.

Presenter: Truong Dang Hoai Thu