Ultrafast movies of atomic motion with femtosecond laser-based x-rays
Using ultrafast x-ray diffraction from a laser-plasma x-ray source, we have observed coherent phonon generation and propagation in bulk(111)-GaAs, (111)-Ge, and thin (Ill)-Ge-on-Si films. At higher optical pump fluences, ultrafast melting of Ge films is observed.
| Autori principali: | , , , , , , , , , , , |
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| Natura: | Conference item |
| Pubblicazione: |
1999
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