Ultrafast Phase Transition in Vanadium Dioxide Driven by Hot-Electron Injection
1 Interdisciplinary Materials Science Program, Vanderbilt University, Nashville, TN 37235, USA
2 Department of Physics, University of Alabama at Birmingham, Birmingham, AL 35924, USA
3 Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM 87545
4 Department of Physics and Astronomy, Vanderbilt University, Nashville, TN 37235, USA
We present a novel all-optical method of triggering the phase transition in vanadium dioxide by means of ballistic electrons injected across the interface between a mesh of Au nanoparticles coveringd VO2 nanoislands. By performing non-degenerate pump-probe transmission spectroscopy on this hybrid plasmonic/phase-changing nanostructure, structural and electronic dynamics can be retrieved and compared.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.