Related Experiment Video
Updated: Aug 1, 2025

Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing
Published on: April 25, 2019
Ionization induced by the ponderomotive force in intense and high-frequency laser fields
Mingyu Zhu1,2, Yuxiang Liu2, Chunli Wei2
1State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China.
Abstract:
Atomic stabilization is a universal phenomenon that occurs when atoms interact with intense and high-frequency laser fields. In this work, we systematically study the influence of the ponderomotive (PM) force, present around the laser focus, on atomic stabilization. We show that the PM force could induce tunneling and even over-barrier ionization to the otherwise stabilized atoms. Such effect may overweigh the typical multiphoton ionization under moderate laser intensities. Our work highlights the importance of an improved treatment of atomic stabilization that includes the influence of the PM force.
Related Concept Videos
Induced Electric Dipoles
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
Induced Electric Fields
Induced Electric Fields: Applications
Potential Due to a Polarized Object
Photoelectric Effect
Atomic Nuclei: Magnetic Resonance

