Sub-cycle waveform synthesis for effective control of electron localization

TL;DR

This paper introduces a sub-cycle waveform synthesis technique that significantly improves control over electron localization in hydrogen molecules, achieving high localization asymmetry with synthesized IR pulses.

Contribution

The paper presents a novel sub-cycle waveform shaping method using synthesized IR pulses, enhancing electron localization control beyond previous approaches.

Findings

Achieved 68% electron localization in H_2^+

Achieved 89% electron localization in H_2

Demonstrated effectiveness through quantum model simulations

Abstract

We have proposed and demonstrated an effective scheme to steer both the electronic and molecular motions of hydrogen molecule and its isotopes. Our scheme lies in the idea of sub-cycle waveform shaping (SWS) with synthesizing coherent IR pulses of different wavelengths. The quantum model simulation indicates a remarkable enhancement of the electron localization asymmetry compared with the few-cycle pulse. 68% and 89% electrons of the dissociating fragmentation can be localized to one nucleus for H_2^+ and H_2, respectively.