Full Spatiotemporal Control of Laser-Excited Periodic Surface Deformations

J.-E. Pudell, M. Sander, R. Bauer, M. Bargheer, M. Herzog, and P. Gaal
Phys. Rev. Applied 12, 024036 – Published 19 August 2019

Abstract

We demonstrate full control of acoustic and thermal periodic deformations at solid surfaces down to subnanosecond time scales and few-micrometer length scales via independent variation of the temporal and spatial phase of two optical transient grating (TG) excitations. For this purpose, we introduce an experimental setup that exerts control of the spatial phase of subsequent time-delayed TG excitations depending on their polarization state. Specific exemplary coherent control cases are discussed theoretically and corresponding experimental data are presented in which time-resolved x-ray reflectivity measures the spatiotemporal surface distortion of nanolayered heterostructures. Finally, we discuss examples where the application of our method may enable the control of functional material properties via tailored spatiotemporal strain fields.

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  • Received 24 January 2019
  • Revised 12 June 2019

DOI:https://doi.org/10.1103/PhysRevApplied.12.024036

© 2019 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

J.-E. Pudell1, M. Sander2, R. Bauer3, M. Bargheer1,4, M. Herzog1,*, and P. Gaal3,†

  • 1Institut für Physik und Astronomie, Universität Potsdam, 14476 Potsdam, Germany
  • 2European Synchrotron Radiation Facility (ESRF), 23800 Grenoble, France
  • 3Institut für Nanostruktur und Festkörperphysik, Universität Hamburg, 20355 Hamburg, Germany
  • 4Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Wilhelm-Conrad-Röntgen Campus, BESSY II, 12489 Berlin, Germany

  • *marc.herzog@uni-potsdam.de
  • pgaal@physnet.uni-hamburg.de

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Vol. 12, Iss. 2 — August 2019

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