Regensburg 2019 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 14: Poster
DS 14.16: Poster
Dienstag, 2. April 2019, 17:00–20:00, Poster E
Spatiotemporal control of surface acoustic waves (SAW), surface skimming longitudinal wave (SSLW) and static surface deformation — •Jan-Etienne Pudell1, Marc Herzog1, Mathias Sander2, Daniel Schmidt3, Matias Bargheer1,4 und Peter Gaal3 — 1Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht- Str. 24-25, 14476 Potsdam, Germany — 2ESRF - The European Synchrotron CS40220 38043 Grenoble Cedex 9 France — 3Institut für Nanostruktur und Festkörperphysik, Universität Hamburg, 20355 Hamburg, Germany — 4Helmholtz Zentrum Berlin, Albert-Einstein-Str. 15, 12489 Berlin, Germany
We present control of coherent and incoherent deformations in solids on sub-nanosecond timescales using a temporal and spatial sequence of optical excitation pulses. For this purpose, we introduce an experimental setup that exerts control of the spatial overlap of subsequent excitations via the polarization of the optical excitation pulse. Specific exemplary coherent control cases are discussed theoretically and compared to experimental data. As application we show the characterization of SAW and SSLW modes by suppressing the other mode respectively. Therefore, we use a thin film yttrium trioxomanganate on Yttria-stabilized zirconia substrate.