Pump-probe Dark-field X-ray Microscopy
| Autor: | Poudyal, Ishwor, Qiao, Zhi, Last, Arndt, Armstrong, Michael R., Islam, Zahir |
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| Rok vydání: | 2022 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | A pump-probe dark-field X-ray microscopy (DFXM) experiment was carried out at the Advanced Photon Source (APS) with nanosecond drive laser pulses and hybrid mode X-ray probe pulses. We observe a thermal decay due to laser-induced heat diffusion in a Germanium single crystal which matches the theoretical prediction. The single pulse DFXM imaging in combination with the laser-pump X-ray probe method could reveal thermal strain formation and propagation of the acoustic wave "on-the-fly" generated by a laser-induced lattice deformation. This will open a new avenue of materials research on laser-induced dynamic phenomena in solids at sub-nanosecond time scales. Comment: Updated Author list on the page consistent with the pdf |
| Databáze: | arXiv |
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