Topological Graphene plasmons in a plasmonic realization of the Su-Schrieffer-Heeger Model

no code implementations • 22 Feb 2021 • Tatiana G. Rappoport, Yuliy V. Bludov, Frank H. L. Koppens, Nuno M. R. Peres

Graphene hybrids, made of thin insulators, graphene, and metals can support propagating acoustic plasmons (AGPs).

Mesoscale and Nanoscale Physics Optics

Imaging vibrations of locally gated, electromechanical few layer graphene resonators with a moving vacuum enclosure

no code implementations • 4 Jan 2021 • Heng Lu, Chen Yang, Ye Tian, Jun Lu, Fanqi Xu, FengNan Chen, Yan Ying, Kevin G. Schädler, Chinhua Wang, Frank H. L. Koppens, Antoine Reserbat-Plantey, Joel Moser

With it we characterize the lowest frequency mode of a FLG resonator by measuring its frequency response as a function of position on the membrane.

Mesoscale and Nanoscale Physics

Harnessing Ultraconfined Graphene Plasmons to Probe the Electrodynamics of Superconductors

no code implementations • 1 Jun 2020 • A. T. Costa, P. A. D. Gonçalves, D. N. Basov, Frank H. L. Koppens, N. Asger Mortensen, N. M. R. Peres

In the case of the graphene plasmons, the coupling is signaled by a clear anticrossing stemming from the interaction of graphene plasmons with the Higgs mode of the superconductor.

Mesoscale and Nanoscale Physics Materials Science Strongly Correlated Electrons Superconductivity Optics