https://doi.org/10.1051/epjconf/202125507002
Coupling of waveguide mode and graphene plasmons
1 Brno University of Technology, Faculty of Mechanical Engineering, Institute of Physical Engineering, Technická 2896/2, 61669, Brno, Czech Republic
2 CAS Institute of Photonics and Electronics, Department of Fiber Lasers and Nonlinear Optics, Chaberská 57, 18251, Prague, Czech Republic
3 Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Department of Physical Electronics, Břehová 7, 11519, Prague 1, Czech Republic
* Corresponding author: petracek@fme.vutbr.cz
Published online: 18 November 2021
Photonic waveguides with graphene layers have been recently studied for their potential as fast and low-power electro-optic modulators with small footprints. We show that in the optical wavelength range of 1.55 μm, surface plasmons supported by the graphene layer with the chemical potential exceeding ~0.5 eV can couple with the waveguide mode and affect its propagation. This effect might be possibly utilized in technical applications as a very low-power amplitude modulation, temperature sensing, etc.
© The Authors, published by EDP Sciences, 2021
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