TY  - JOUR
A1  - Bojahr, Andre
A1  - Herzog, Marc
A1  - Mitzscherling, Steffen
A1  - Maerten, Lena
A1  - Schick, Daniel
A1  - Goldshteyn, J.
A1  - Leitenberger, Wolfram
A1  - Shayduk, R.
A1  - Gaal, P.
A1  - Bargheer, Matias
T1  - Brillouin scattering of visible and hard X-ray photons from optically synthesized phonon wavepackets
T2  - Optics express : the international electronic journal of optics
N2  - We monitor how destructive interference of undesired phonon frequency components shapes a quasi-monochromatic hypersound wavepacket spectrum during its local real-time preparation by a nanometric transducer and follow the subsequent decay by nonlinear coupling. We prove each frequency component of an optical supercontinuum probe to be sensitive to one particular phonon wavevector in bulk material and cross-check this by ultrafast x-ray diffraction experiments with direct access to the lattice dynamics. Establishing reliable experimental techniques with direct access to the transient spectrum of the excitation is crucial for the interpretation in strongly nonlinear regimes, such as soliton formation.
Y1  - 2013
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/34738
SN  - 1094-4087
VL  - 21
IS  - 18
SP  - 21188
EP  - 21197
PB  - Optical Society of America
CY  - Washington
ER  -