01-1
Experimental data movie (Polarization: S-polarized)
All pump–probe delay measurements were interleaved with periodic intact-state measurements to verify reversible sample recovery and measurement reproducibility.
TIME-RESOLVED DARK-FIELD X-RAY MICROSCOPY
Revealing Defect-Mediated Lattice Dynamics with Time-Resolved Dark-Field X-ray Microscopy
Time-resolved DFXM reveals how crystal defects shape the propagation and relaxation of photo-induced lattice dynamics in bulk germanium.
View experimental data ↓Seong Gook KimPOSTECH · Max Planck POSTECH/Korea Research Initiative
EXPERIMENTAL DATA
Movies
01-2
Annotated elastic-wave propagation
Blue arrows indicate the longitudinal strain wave propagating along the depth direction, while red arrows indicate the transverse elastic wave propagating in plane.
01-3
Larger-beam case: extended field of view
A larger vortex-beam footprint enables a broader sample region to be probed. Consistent longitudinal and transverse wave responses are also observed near the dislocation on the right; the red arrows specifically mark the transverse in-plane component.