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Depopulation of Edge States under Local Periodic Driving despite Topological Protection

: Jörg, C.; Cherpakova, Z.; Dauer, C.; Letscher, F.; Fleischhauer, M.; Eggert, S.; Linden, S.; Freymann, G. von


American Physical Society -APS-; IEEE Photonics Society; Optical Society of America -OSA-, Washington/D.C.:
Conference on Lasers and Electro-Optics, CLEO 2019. Proceedings : San Jose, California, USA, 5-10 May 2019
Piscataway, NJ: IEEE, 2019
ISBN: 978-1-943580-57-6
ISBN: 978-1-72813-718-6
Conference on Lasers and Electro-Optics (CLEO) <2019, San Jose/Calif.>
Fraunhofer ITWM ()

We show that edge states can be depopulated despite their topological protection. Local time-periodic driving results in hybridization of edge and bulk states for certain driving frequencies. Experiments are performed using plasmonic and dielectric waveguides.