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Showing 1–7 of 7 results
Advanced filters: Author: Mathieu Gisselbrecht Clear advanced filters

  • Here the authors report experiment and theory study of the photoionization of xenon inner shell 4d electron using attosecond pulses. They have identified two ionization paths - one corresponding to broad giant dipole resonance with short decay time and the other involving spin-flip transitions.

    • Shiyang Zhong
    • Jimmy Vinbladh
    • Anne L’Huillier
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-6

  • To better understand the mechanisms of double ionization following the absorption of one photon, a combination of experimental techniques has been developed to probe the electron emission times in xenon on the attosecond timescale.

    • Erik P. Månsson
    • Diego Guénot
    • Mathieu Gisselbrecht
    Research
    Nature Physics
    Volume: 10, P: 207-211

  • Photoelectron quantum-state tomography is demonstrated in helium and argon atoms upon the absorption of ultrashort, extreme ultraviolet light pulses. The purity and degree of entanglement of a mixed photoelectron and ion state are quantified following coherent two-photon ionization using an extreme ultraviolet pulse and two infrared pulses.

    • Hugo Laurell
    • Sizuo Luo
    • David Busto
    ResearchOpen Access
    Nature Photonics
    Volume: 19, P: 352-357

  • Understanding of photoionization dynamics, one of the fastest processes in nature, requires the characterization of all underlying ionization channels. Here the authors use an interferometry technique based on attosecond pulses to measure the phase and amplitude of the individual angular momentum channels in the photoionization of neon.

    • Jasper Peschel
    • David Busto
    • Per Eng-Johnsson
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-7

  • Rabi dynamics between the ground state and an excited state in helium atoms are generated using femtosecond extreme-ultraviolet pulses from a seeded free-electron laser, which may allow ultrafast manipulation of coherent processes at short wavelengths.

    • Saikat Nandi
    • Edvin Olofsson
    • Jan Marcus Dahlström
    ResearchOpen Access
    Nature
    Volume: 608, P: 488-493

  • Ionization time delays are of interest in understanding the photoionization mechanism in atoms and molecules in ultra-short time scales. Here the authors investigate the angular dependence of photoionization time delays in the presence of an autoionizing resonance in argon atom using RABBITT technique.

    • Claudio Cirelli
    • Carlos Marante
    • Ursula Keller
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-9

  • In the Martian atmosphere, CO2 clusters are predicted to exist at high altitudes motivating a deeper understanding of their photochemistry. Here the authors use quantum chemistry calculations and multi-coincidence mass spectrometry to show that a size-dependent structural transition enhances the production of \({{{{{{{{\rm{O}}}}}}}}}_{2}^{+}\) from photoionized CO2 clusters.

    • Smita Ganguly
    • Dario Barreiro-Lage
    • Mathieu Gisselbrecht
    ResearchOpen Access
    Communications Chemistry
    Volume: 5, P: 1-7