On the study of electron-phonon and phonon-phonon coupling in femtosecond laser-excited tungsten

Mianzhen Mo; Artur Tamm; Erki Metsanurk; Zhijiang Chen; Ling Wang; Mungo Frost; Nicholas Hartley; Fuhao Ji; Silvia Pandolfi; Alexander H. Reid; Peihao Sun; Xiaozhe Shen; Yongqiang Wang; Xijie Wang; Siegfried Glenzer; Alfredo A. Correa

doi:10.1117/12.3012397

11 April 2024 On the study of electron-phonon and phonon-phonon coupling in femtosecond laser-excited tungsten

Mianzhen Mo, Artur Tamm, Erki Metsanurk, Zhijiang Chen, Ling Wang, Mungo Frost, Nicholas Hartley, Fuhao Ji, Silvia Pandolfi, Alexander H. Reid, Peihao Sun, Xiaozhe Shen, Yongqiang Wang, Xijie Wang, Siegfried Glenzer, Alfredo A. Correa

Author Affiliations +

Proceedings Volume 12939, High-Power Laser Ablation VIII; 1293902 (2024) https://doi.org/10.1117/12.3012397
Event: SPIE High-Power Laser Ablation, 2024, Santa Fe, New Mexico, United States

Abstract

Understanding the dynamics of electron-phonon and phonon-phonon interactions is important to unravel the complex behavior of materials subject to ultrafast laser excitation. We report the results of studying these interactions in femtosecond laser-excited tungsten (W) using the technique of ultrafast electron diffuse scattering (UEDS). By tracking changes of diffuse scattering signal over time, we resolve the dynamics of phonon populations across the Brillouin zone in W. Our results shed light on both electron-phonon and phonon-phonon coupling dynamics in W [Mo et al. Science Advances, in press (2024)]. This paper outlines the fundamental principle behind the UEDS technique, provides a brief overview of the experimental setup, and presents selected results of time-resolved diffuse scattering patterns.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Mianzhen Mo, Artur Tamm, Erki Metsanurk, Zhijiang Chen, Ling Wang, Mungo Frost, Nicholas Hartley, Fuhao Ji, Silvia Pandolfi, Alexander H. Reid, Peihao Sun, Xiaozhe Shen, Yongqiang Wang, Xijie Wang, Siegfried Glenzer, and Alfredo A. Correa "On the study of electron-phonon and phonon-phonon coupling in femtosecond laser-excited tungsten", Proc. SPIE 12939, High-Power Laser Ablation VIII, 1293902 (11 April 2024); https://doi.org/10.1117/12.3012397

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