A femtosecond time-resolved Bragg coherent diffraction imaging experimental setup at PAL-XFEL for nanoscale lattice dynamics studies

Kang, J.; Park, J.; Shim, C.H.; Cho, M.-H.; Moon, K.-J.; Ha, S.S.; Kim, H.; Cho, S.-L.; Kim, S.

doi:10.1107/S1600577526007927

Figure 4
Temporal evolution of the zeolite (020) Bragg reflection and the corresponding retrieved displacement fields. A comparative analysis is presented for two conditions: without optical pump laser excitation and with optical pump laser excitation (nominal fluence of 2 mJ cm⁻²) at delay times of 0, 30, 80, and 130 ps (from left to right). The upper row within each condition displays the 2D CXD profiles centered on the (020) Bragg peak ( $[{\bf{q}}_z]$ = 3.14 × 10⁻¹ Å⁻¹), where the white grid lines indicate a momentum transfer. The lower row presents the corresponding 2D phase maps, showing the displacement fields projected along the [020] Bragg vector.

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 33| Part 6| November 2026|

https://doi.org/10.1107/S1600577526007927

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