$Time-resolved x-ray diffraction study of ultrafast acoustic phonon dynamics in Ge/Si-heterostructures$

Time-resolved x-ray diffraction study of ultrafast acoustic phonon dynamics in Ge/Si-heterostructures

Using time-resolved x-ray diffraction the ultafast strain dynamics in fs-laserexcited Ge/Si-heterostructures has been studied. A fluence dependent, anharmonic damping of the impulsively generated acoustic phonons and vibrational transport across the buried Ge/Si-interface are observed.

Bibliografiska uppgifter
Huvudupphovsmän:	Sokolowski-Tinten, K, Cavalleri, A, Siders, C, Brown, F, Leitner, D, Toth, C, Kammler, M, von Hoegen, M, von der Linde, D, Squier, J, Barty, C, Wilson, K
Materialtyp:	Conference item
Publicerad:	2001

Time-resolved x-ray diffraction study of ultrafast acoustic phonon dynamics in Ge/Si-heterostructures

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