Programme

P.96 -- Posters, VCTP-51

Date: Thursday, 6 August 2026

Time: 09:30 - 10:30

ELECTRON DYNAMICS IN NONSEQUENTIAL TRIPLE IONIZATION OF NEON ATOMS: LASER-WAVELENGTH DEPENDENCE

Thu D.H. Truong (1), Khoa B. Chau (1), Bach N.X. Ho (1), Vinh N.T Pham (1,2)

(1) Department of Physics, Ho Chi Minh City University of Education, Ho Chi Minh City, Vietnam; (2) Office of postgraduate studies, Ho Chi Minh City University of Education, Ho Chi Minh City, Viet Nam

In this study, we employ the full classical ensemble model to enhance the computational simulation of nonsequential triple ionization (NSTI) in Ne atoms induced by a strong laser field. By tracing the electron trajectories, we uncover the underlying mechanisms of NSTI, which involve a combination of recollision and sequential ionization. Specifically, electrons ionized by the laser field can return to recollide with the parent ion, either directly ionizing the remaining bound electrons or exciting them to be ionized after a characteristic time delay. Crucially, we investigate how the laser wavelength impacts the dynamics of this NSTI process. Our results demonstrate that with laser fields of identical intensity, varying the wavelength significantly alters the ionization dynamics and shifts the relative contributions of the underlying mechanisms.

Presenter: Pham Nguyen Thanh Vinh