Anharmonic lattice dynamics in germanium measured with ultrafast x-ray diffraction.
Damping of impulsively generated coherent acoustic oscillations in a femtosecond laser-heated thin germanium film is measured as a function of fluence by means of ultrafast x-ray diffraction. By simultaneously measuring picosecond strain dynamics in the film and in the unexcited silicon substrate, w...
| Hlavní autoři: | , , , , , , , , , , , |
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| Médium: | Journal article |
| Jazyk: | English |
| Vydáno: |
2000
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