March 3, 2026

Poster abstract: RABBITT-HOP: RABBITT with Higher-Order Processes

Key Points

Higher-order processes can be effectively identified at moderate IR intensities, enhancing the RABBITT technique.
Amplitude and phase information extraction is significantly improved, particularly for the 1s4p and 1s5p states.
The research utilizes analysis of multiple higher-lying sidebands and mainbands in photoelectron spectra.
Therefore, RABBITT-HOP may revolutionize how we interpret complex molecular interactions.

Abstract

The RABBITT technique enables precise extraction of amplitude and phase information from photoelectron spectra but is traditionally limited to weak IR fields and two-photon pathways. We present RABBITT-HOP, demonstrating how Higher-Order Processes can be identified even at moderate IR intensities. We target the 1s4p and 1s5p states in He, and show how these resonances imprint in multiple, higher-lying sidebands and mainbands.

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Authors

Luke Roantree

Andrew; id_orcid 0000-0001-5652-1495 Brown

Hugo Van Der Hart

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Poster abstract: RABBITT-HOP: RABBITT with Higher-Order Processes

Key Points

Abstract

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Discussion

Authors

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