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Related Experiment Video

Updated: Jan 24, 2026

Correlative Microscopy for 3D Structural Analysis of Dynamic Interactions

Correlative Microscopy for 3D Structural Analysis of Dynamic Interactions

Published on: June 24, 2013

Controlling Dynamics of Postcollision Interaction.

Anton N Artemyev¹, Alexej I Streltsov¹, Philipp V Demekhin¹

¹Institut für Physik und CINSaT, Universität Kassel, Heinrich-Plett-Straße 40, 34132 Kassel, Germany.

Physical Review Letters

|May 31, 2019

Summary

This summary is machine-generated.

This study introduces a method using sequential double ionization with two laser pulses to control postcollision interaction (PCI) in atoms. Researchers can manipulate electron energy exchange and recapture by adjusting pulse properties and delay times.

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Area of Science:

Atomic Physics
Quantum Mechanics
Strong Field Physics

Background:

Postcollision interaction (PCI) is a complex quantum phenomenon occurring after electron ejection.
Controlling PCI is crucial for understanding electron dynamics in atomic ionization.

Purpose of the Study:

To propose and demonstrate a general scheme for controlling postcollision interaction (PCI) using sequential double ionization.
To investigate the dynamics of slow and fast photoelectrons and their interactions.

Main Methods:

Utilized sequential double ionization with two time-delayed, high-frequency laser pulses.
Performed ab initio calculations solving the time-dependent Schrödinger equation for the helium atom.
Propagated two-electron wave packets using stationary eigenstates of the unperturbed Hamiltonian.

Main Results:

Visualized PCI effects in real time and real space.
Demonstrated control over energy exchange between slow and fast photoelectrons in the continuum.
Showed that photoelectron recapture can be managed by pulse properties and time delay.

Conclusions:

The proposed scheme offers insight and control over PCI.
Tunable laser pulse parameters and time delays are effective in manipulating electron dynamics.
This method provides a pathway to precisely control atomic ionization processes.