Dissociative Ionization and Coulomb Explosion of CHBrCl2 in Intense Near-Infrared Femtosecond Laser Fields

Article Physics, Multidisciplinary

Isolating Attosecond Electron Dynamics in Molecules where Nuclei Move Fast

Laura Cattaneo et al.

Summary: This letter investigates the impact of nuclear motion on the measurement of electronic dynamics using two popular attosecond techniques. The results show that streaking is a better choice for isolating attosecond electron dynamics.

PHYSICAL REVIEW LETTERS (2022)

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Article Physics, Multidisciplinary

Revealing Molecular Strong Field Autoionization Dynamics

Sizuo Luo et al.

Summary: The research identifies and investigates the dynamics of strong-field autoionization through experimental studies on double-ionized CO. The results show that electrons in SFAI are generated through the field-induced decay of the autoionizing state and subsequently accelerated in the laser field.

PHYSICAL REVIEW LETTERS (2021)

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Article Chemistry, Multidisciplinary

Dissociative Ionization of Molecular CF2Br2 under 800 and 400 nm Intense Femtosecond Laser Fields

Botong Liu et al.

Summary: The interaction between the CF2Br2 molecule and 800/400 nm intense femtosecond laser fields has been studied by analyzing the kinetic energy release distribution and angular distribution of fragment ions, determining the dissociation channels along C-Br bond cleavage. The isotropic structure of the angular distribution for CF2Br+ ions is attributed to the coupling between the excited states, and a unique elimination channel of CF2Br2+ -> CF2 + Br-2(+) has been observed in the case of 400 nm laser field where the two C-Br bonds break asynchronously.

APPLIED SCIENCES-BASEL (2021)

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Article Optics

Characterizing subcycle electron dynamics of polar molecules by asymmetry in photoelectron momentum distributions

J. Y. Che et al.

Summary: By utilizing the developed strong-field model and the photoelectron momentum distributions in orthogonal two-color laser fields, researchers are able to resolve the complex electron dynamics of polar molecules with attosecond-scale resolution.

PHYSICAL REVIEW A (2021)

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Article Optics

Probing tunneling dynamics of dissociative H2 molecules using two-color bicircularly polarized fields

Zhenning Guo et al.

Summary: The study explores the tunneling dynamics of internuclear-dependent dissociative reaction of H-2 using two-color bicircularly polarized femtosecond laser pulses. By measuring high-resolution photoelectron spectroscopy, the researchers disentangle the effects of the long-range Coulomb potential and the initial phase on molecular-frame photoelectron momentum distributions. The work provides insights into ultrafast spatiotemporal photoelectron dynamics and quantum control of molecular chemical processes via sculptured circular fields.

PHYSICAL REVIEW A (2021)

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Article Optics

Competition between dynamic resonance and internal conversion in strong-field molecular ionization with chirped ultrafast laser pulses

Brian Kaufman et al.

Summary: This study demonstrates the control of ionization yield to different ionic states in a polyatomic molecule by using the time-varying phase or frequency of a chirped strong-field ultrafast laser pulse. The competition between multiphoton resonance and internal conversion plays a crucial role in this control. The research highlights the competition between light-matter coupling and the coupled motions of electrons and nuclei in strong-field laser-molecule interactions.

PHYSICAL REVIEW A (2021)

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Review Optics