Polarization-selective attosecond four-wave mixing resolves ultrafast decoherence of dipole-allowed and dipole-forbidden core excitons in NaF, attributing the sub-8 fs times to strong exciton-phonon coupling and identifying s-like versus p-like orbital angular momentum.
Leone, Background-free Tracking of Ultrafast Hole and Electron Dynamics with XUV Transient Grating Spec- troscopy (2026), arXiv:2602.09565 [physics.optics]
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Probing of Core Excitons in Solid NaF with Polarization-Selective Attosecond Time-Resolved Four-Wave Mixing Spectroscopy
Polarization-selective attosecond four-wave mixing resolves ultrafast decoherence of dipole-allowed and dipole-forbidden core excitons in NaF, attributing the sub-8 fs times to strong exciton-phonon coupling and identifying s-like versus p-like orbital angular momentum.