Phononic crystals

Monday, April 24, 2017 - 2:30pm - 3:30pm
Florian Marquardt (Friedrich-Alexander-Universität Erlangen-Nürnberg)
Topological transport of sound waves and vibrations in solids has attracted considerable attention in the past two years. Several approaches have been proposed and some have been demonstrated. However, it remains an outstanding challenge to create platforms for topological transport of phonons at the nanoscale. In this talk, I will describe three possible approaches that we have proposed. In the first, time-reversal is broken explicitly, with the help of an external laser field containing optical vortices.
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