TY  - JOUR
A1  - Herzog, Marc
A1  - Schick, Daniel
A1  - Leitenberger, Wolfram
A1  - Shayduk, Roman
A1  - van der Veen, Renske M.
A1  - Milne, Christopher J.
A1  - Johnson, Steven Lee
A1  - Vrejoiu, Ionela
A1  - Bargheer, Matias
T1  - Tailoring interference and nonlinear manipulation of femtosecond x-rays
T2  - New journal of physics : the open-access journal for physics
N2  - We present ultrafast x-ray diffraction (UXRD) experiments on different photoexcited oxide superlattices. All data are successfully simulated by dynamical x-ray diffraction calculations based on a microscopic model, that accounts for the linear response of phonons to the excitation laser pulse. Some Bragg reflections display a highly nonlinear strain dependence. The origin of linear and two distinct nonlinear response phenomena is discussed in a conceptually simpler model using the interference of envelope functions that describe the diffraction efficiency of the average constituent nanolayers. The combination of both models facilitates rapid and accurate simulations of UXRD experiments.
Y1  - 2012
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/36206
SN  - 1367-2630
VL  - 14
IS  - 1
PB  - IOP Publ. Ltd.
CY  - Bristol
ER  -