july, 2021

13jul15:0016:00FeaturedVirtual EventAttoChem webinar (C. Figueira de Morisson)Dissecting intra-cycle quantum interference in ultrafast photoelectron holography

Event Details

Carla Figueira de Morisson Faria, University College London, UK.
Dissecting intra-cycle quantum interference in ultrafast photoelectron holography 
Chair: Aurora Ponzi (Ruder Boskovic Institute, HR)

Abstract: Similarly to traditional holography, ultrafast photoelectron holography explores quantum phase differences between qualitatively different electron pathways to extract information about a target. Unfortunately, however, the residual binding potential is neglected in most theoretical models of the interference patterns encountered. This is problematic as its presence radically alters the electron dynamics. In this presentation, I will analyze a myriad holographic patterns, known and overlooked, in terms of electron trajectories using an orbit-based method that includes the binding potential and the laser field on equal footing: the Coulomb Quantum-orbit Strong-Field Approximation (CQSFA) [1]. Subsequently, I will provide applications and illustrate how photoelectron holography may be used to detect the parity of atomic and molecular orbitals [2] and introduce a novel spiral-like holographic structure highly sensitive to phase differences [3]. We also discuss how one can overcome the obstacle posed by ATI rings, in order to investigate subtle multi-path interference [4].

[1] A. S. Maxwell et al, Phys. Rev. A 96, 023420 (2017); J. Phys. B 51, 124001 (2018)
[2] H. Kang et al, Phys. Rev. A 102, 013109 (2020)
[3] A. S. Maxwell et al, Phys. Rev. A 102, 033111 (2020)
[4] Nicholas Werby, Andrew S. Maxwell, Ruaridh Forbes, et al., https://arxiv.org/abs/2102.12000

To register for this event, please, follow this link: https://brightelm.eventsair.com/attochem-webinar-series-2021/reg/Site/Register

If you have already registered but have not received the link to the webinar, please contact: Attochem@brightelm.co.uk

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Time

(Tuesday) 15:00 - 16:00

Organizer


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