Journal Article PUBDB-2025-05202

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Visualizing the strong field–induced molecular breakup of C60 via x-ray diffraction

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2025
Assoc. Washington, DC [u.a.]

Science advances 11(47), eadz1900 () [10.1126/sciadv.adz1900]
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Abstract: Laser-driven dynamics in polyatomic molecules poses a complex many-body problem. Understanding intense light-matter interaction is crucial for steering intramolecular quantum dynamical processes. Here, we record time-resolved x-ray diffraction images of molecules during and after their interaction with intense near-infrared fields, giving direct access to structural changes of the molecules and their fragmentation in real time. Tuning the intensity of the excitation pulses, we uncover a transition from a weak-field regime of excited but stable molecules to a high-field regime dominated by Coulomb explosion. In the transition region, the molecules expand by up to 50% of their initial size within just 140 fs, with major fragmentation only setting in afterward. This work demonstrates that x-ray diffractive imaging is capable of retrieving time-resolved structural information of large molecules reshaped by intense laser fields. Laser-driven fragmentation is a first step toward observing molecular processes modified by laser fields of increasing intensity.

Classification:

Contributing Institute(s):
  1. Strukturdynamik Chemischer Systeme (FS-SCS)
Research Program(s):
  1. 633 - Life Sciences – Building Blocks of Life: Structure and Function (POF4-633) (POF4-633)
  2. SFB 1073 C02 - In-situ hochauflösende Untersuchung des aktiven Zustands bei der (photo-) elektrochemischen Wasserspaltung (C02) (240172646) (240172646)
Experiment(s):
  1. Measurement at external facility

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Medline ; DOAJ ; Article Processing Charges ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; Essential Science Indicators ; Fees ; IF >= 10 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection ; Zoological Record
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 Record created 2025-11-25, last modified 2025-11-25


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