Enhancing frustrated double ionisation with no electronic correlation in triatomic molecules using counter-rotating two-color circular laser fields

Abstract

We demonstrate significant enhancement of frustrated double ionization (FDI) in the two-electron triatomic molecule D${}_3^{+}$ when driven by counter-rotating two-color circular (CRTC) laser fields. We employ a three-dimensional semiclassical model that fully accounts for electron and nuclear motion in strong fields. For different pairs of wavelengths, we compute the probabilities of the FDI pathways as a function of the ratio of the two field-strengths. We identify a pathway of frustrated double ionization that is not present in strongly-driven molecules with linear fields. In this pathway the first ionization step is "frustrated" and electronic correlation is essentially absent. This pathway is responsible for enhancing frustrated double ionization with CRTC fields. We also employ a simple model that predicts many of the main features of the probabilities of the FDI pathways as a function of the ratio of the two field-strengths.

arXiv comment8 pages, 3 figures

References in corpus (10)

• Generation of phase-matched circularly-polarized extreme ultraviolet high harmonics for magnetic circular dichroism spectroscopy
• Non-Sequential Double Ionization by Counter Rotating Circularly Polarized Two-Color Laser Fields
• Circularly Polarized Molecular High Harmonic Generation Using a Bicircular Laser
• Two-electron effects pervading the formation of highly excited neutral atoms in the break-up of strongly driven H${}_2$
• A toolkit for semiclassical computations for strongly-driven molecules: "frustrated" ionization of H${}_2$ driven by elliptical laser fields
• Localizing High-Lying Rydberg Wave Packets with Two-Color Laser Fields
• Frustrated double ionization in two-electron triatomic molecules
• Controlling electron-electron correlation in frustrated double ionization of molecules with orthogonally polarized two-color laser fields
• Frustrated double and single ionization in a two-electron triatomic molecule H${}_3^{+}$
• Intertwined electron-nuclear motion in frustrated double ionization in driven heteronuclear molecules

Cited by in corpus (3)

• Revealing laser-coherent electron features using phase-of-the-phase spectroscopy
• Triple ionization and "frustrated" triple ionization in triatomic molecules driven by intense laser fields
• Frustrated double ionization of atoms in circularly polarized laser fields