Manipulation of slow and superluminal light based on a graphene nanoribbon resonator
School of Mechanics and Photoelectric Physics, Anhui University of Science and Technology, Huainan Anhui 232001, P.R. China
Received: 26 September 2016
Received in final form: 4 November 2016
Published online: 21 March 2017
We theoretically investigate the phenomena of slow and superluminal light based on a doubly clamped Z-shaped graphene nanoribbon (GNR) nanomechanical resonator driven by two-tone fields. Superluminal and ultraslow probe light without absorption can be obtained via manipulating the pump laser on- and off-resonant with the exciton frequency, respectively. The results indicate that the above phenomena cannot occur without the coupling between graphene resonator and excition in the system. Further, the all-optical schemes for determining the graphene resonator frequency and the coupling strength of excition-resonator in the Z-shaped GNR system are also proposed. The all-optical device based on graphene resonator may have potential application in optical networks and engineering in nanoscale.
Key words: Quantum Optics
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2017