Work

Polarization effect on molecular ionization and Rydberg-state excitation in laser fields

Year: 2025

Type: article

Abstract: We have studied the impact of the dynamic core-electron polarization on molecular ionization and Rydberg-state excitation for CO molecules subjected to different laser pulses by numerically solving the three-dimensional time-dependent Schrödinger equations (TDSE) and semiclassical simulations. It is found that the ionization and the Rydberg-state excitation prefer to occur for the peak electric field pointing from C nucleus to O nucleus if the multielectron polarization effect is included, which are consistent with previous experimental observations. In addition, the electron tends to occupy the low-lying excited states after the occurrence of tunneling and the excitation yield increases relatively with respect to the ionization probability if the polarization effect is considered, and the above intriguing features are ascribed to the facts that the tunneling exit becomes closer to the core due to the polarization effect.

Source: Optics Express

DOI: 10.1364/oe.563611

Authors: Shilin Hu, Xiaopeng Yi, Li Guo, Pengcheng Li, Jing Chen

Institutions: Institute of Applied Physics and Computational Mathematics, Shanghai Normal University, University of Science and Technology of China

Language: English

Topic: Laser-Matter Interactions and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funders: National Natural Science Foundation of China, Natural Science Foundation of Guangdong Province, Department of Education of Guangdong Province