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Attosecond Vortex Photoelectron Holography for Probing Phase-Encoded Chirality.

Liding Li1, Yongkun Chen1, Miao Yu1

  • 1Huazhong University of Science and Technology, Wuhan National Laboratory for Optoelectronics, School of Physics and , Wuhan 430074, China.

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|March 20, 2026
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Summary
This summary is machine-generated.

Strong-field photoelectron holography (SFPH) now analyzes vortex electrons, revealing molecular chirality. This phase-sensitive technique maps electron helicity to interference fringes, enabling ultrafast chiral dynamics measurements.

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Area of Science:

  • Quantum optics
  • Attosecond science
  • Chirality studies

Background:

  • Strong-field photoelectron holography (SFPH) retrieves photoelectron wave packet phase.
  • SFPH conventionally uses plane-phase electron wave packets.
  • Understanding atomic/molecular structure and ultrafast dynamics is crucial.

Purpose of the Study:

  • Generalize SFPH theory to vortex electrons.
  • Develop a phase-sensitive diagnostic for chirality.
  • Access chiral information encoded in photoelectrons.

Main Methods:

  • Employed a synthetic chiral atomic model with helical orbitals.
  • Generalized SFPH theory for vortex electrons.
  • Analyzed interference fringes and phase shifts.

Main Results:

  • Demonstrated SFPH maps electron helicity to interference fringes.
  • Resolved enantio-sensitive phase shifts.
  • Established phase-sensitive access to chiral information.

Conclusions:

  • SFPH is generalized to vortex electrons for chirality detection.
  • This method complements amplitude-based chiral spectroscopies.
  • Attosecond temporal resolution allows measurement of ultrafast chiral dynamics.