Current researches
Ultrafast physics of molecular systems in the gas and liquid phases: from purely electronic dynamics (attosecond ; 10−18 s) to vibrational dynamics (picosecond ; 10−12 s). I use XUV light (eXtreme UltraViolet, ~10-100eV) to probe matter or initiate photoionization dynamics.
Research background
Since 2025 : CNRS researcher.
Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), CNRS, Strasbourg – France
2022 – 2024 : Postdoctorate in Toshinori Suzuki’s group on time-resolved photoelectron spectroscopy to study ultrafast UV-induced dynamics in biomolecules in the gas and liquid phases.
JSPS fellowship (Japan Society for the Promotion of Science).
Faculty of science, Kyoto University, Kyoto – Japan
Academic background
2022 : PhD thesis in Ultrafast Physics: «Attosecond and femtosecond dynamics induced by ultrafast XUV photoionisation in neutral molecules and complex biomolecular ions», directed by Franck Lépine and Vincent Loriot. https://theses.hal.science/tel-04074848
PhD thesis price Saint-Gobain 2022, awarded by Société Française de Physique.
Institut Lumière Matière (ILM), Université Claude Bernard Lyon 1, CNRS, Lyon – France
2019 : Master degree in Atomic and Molecular Physics, Condensed Matter and Optics
Université Claude Bernard Lyon 1, Lyon – France
2017 : Bachelor degree in Physical Chemistry
Université de Lorraine, Nancy – France
Publications
2024 :
K. Maeda, A. Boyer, S. Karashima, A. Humeniuk & T. Suzuki, “Effects of Methyl Substitution on the Ultrafast Internal Conversion of Benzene” J. Phys. Chem. Lett., 15, 47, 11760–11766 (2024) https://doi.org/10.1021/acs.jpclett.4c02859
A. Boyer, A. Humeniuk, S. Karashima & T. Suzuki, “Deuterium Isotope Effect on Internal Conversion of Ethylene Studied by Time-Resolved Photoelectron Spectroscopy” J. Phys. Chem. A, 128, 34, 7068-7072 (2024) https://doi.org/10.1021/acs.jpca.4c02647
V. Loriot, A. Boyer, S. Nandi, C. M. González-Collado, E. Plésiat, A. Marciniak, C. L. Garcia, Y. Hu, M. Lara-Astiaso, A. Palacios, P. Decleva, F. Martín & F. Lépine, “Attosecond metrology of the two-dimensional charge distribution in molecules” Nature Physics, 20, 765-769 (2024) https://doi.org/10.1038/s41567-024-02406-2
R. Uenishi, A. Boyer, S. Karashima, A. Humeniuk & T. Suzuki, “Signatures of Conical Intersections in Extreme Ultraviolet Photoelectron Spectra of Furan Measured with 15 fs Time Resolution” J. Phys. Chem. Lett., 15, 8, 2222–2227 (2024) https://doi.org/10.1021/acs.jpclett.3c03582
A. Boyer, V. Loriot, S. Nandi & F. Lépine, “Probing Photoionization Dynamics in Acetylene with Angle-Resolved Attosecond Interferometry” J. Phys. Chem. A, 128, 5, 840-847 (2024) https://doi.org/10.1021/acs.jpca.3c06533
2023 :
A. Boyer, S. Nandi & V. Loriot, “Attosecond probing of photoionization dynamics from diatomic to many-atom molecules” Eur. Phys. J. Spec. Top. 232, 2001-2009 (2023) https://doi.org/10.1140/epjs/s11734-022-00754-9
N. Orimo, Y. Yamamoto, S. Karashima, A. Boyer & T. Suzuki, “Ultrafast Electronic Relaxation in 6-Methyluracil and 5-Fluorouracil in Isolated and Aqueous Conditions: Substituent and Solvent Effects” JPCL 14, 11, 2758-2763 (2023) https://doi.org/10.1021/acs.jpclett.3c00195
2022 :
M. Hervé, A. Boyer, R. Brédy, I. Compagnon & F. Lépine, “Ultrafast dynamics in molecular ions following UV and XUV excitation: a perspective” Advances in Physics: X 7, 1, 2123283 (2022) https://doi.org/10.1080/23746149.2022.2123283
M. Vacher, A. Boyer, V. Loriot, F. Lépine & S. Nandi, “Few-femtosecond isotope effect in polyatomic molecules ionized by extreme ultraviolet attosecond pulse trains” J. Phys. Chem. A 126, 34, 5692–5701 (2022) https://doi.org/10.1021/acs.jpca.2c03487
M. Hervé, A. Boyer, R. Brédy, A-R. Allouche, I. Compagnon & F. Lépine, “On-the-fly investigation of XUV excited large molecular ions using a high harmonic generation light source” Scientific Reports 12, 13191 (2022) https://doi.org/10.1038/s41598-022-17416-4
R. Brédy, M. Hervé, A. Boyer, J. M. Brown, I. Compagnon & F. Lépine, “Non-ergodic fragmentation of protonated reserpine using femtosecond laser activation” Int. J. Mass Spectrom. 471, 116729 (2022) https://doi.org/10.1016/j.ijms.2021.116729
2021 :
A. Boyer, M. Hervé, A. Scognamiglio, V. Loriot & F. Lépine, “Time-resolved relaxation and cage opening in diamondoids following XUV ultrafast ionization” Phys. Chem. Chem. Phys. 23, 27477 (2021) https://doi.org/10.1039/D1CP03502A
A. Boyer, M. Hervé, V. Despré, P. Castellanos Nash, V. Loriot, A. Marciniak, A. G. G. M. Tielens, A. I. Kuleff & F. Lépine, “Ultrafast Vibrational Relaxation Dynamics in XUV-Excited Polycyclic Aromatic Hydrocarbon Molecules” Phys. Rev. X 11, 041012 (2021) https://doi.org/10.1103/PhysRevX.11.041012
M. Hervé, A. Boyer, R. Brédy, I. Compagnon, A. R. Allouche & F. Lépine, “Controlled Ultrafast ππ*-πσ* Dynamics in Tryptophan-based Peptides with Tailored Micro-environment” Commun. Chem. 4, 124 (2021) https://doi.org/10.1038/s42004-021-00557-4
M. Hervé, V. Despré, P. Castellanos Nash, V. Loriot, A. Boyer, A. Scognamiglio, G. Karras, R. Brédy, E. Constant, A. G. G. M. Tielens, A. I. Kuleff & F. Lépine, “Ultrafast dynamics of correlation bands following XUV molecular photoionization” Nature Physics 17, 327-331 (2021) https://doi.org/10.1038/s41567-020-01073-3