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...
Hauptverfasser: | Cavalleri, A, Siders, C, Brown, F, Leitner, D, Tóth, C, Squier, J, Barty, C, Wilson, K, Sokolowski-Tinten, K, Horn Von Hoegen, M, von der Linde, D, Kammler, M |
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Format: | Journal article |
Sprache: | English |
Veröffentlicht: |
2000
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