Fast and slow light generated by surface plasmon wave and gold grating coupling effects
Document Type
Article
Publication Date
1-1-2018
Abstract
We present here the results of a simulation of the effect of gold and graphene coatings on silicon micro-ring resonators. We studied the effect of different radii of graphene on the time delay, from which one an interesting aspect of light pulse behaviors, such as fast light, was numerically investigated. The obtained results indicate that the time delay can be varied, which is in good agreement with theoretical predictions. Fast and slow light pulse trains can be obtained by modifying the throughput port, which forms the gold grating length. The temporal gaps between the fast and slow light in the used graphene and gold are 140 and 168 fs, respectively, which can be tuned by varying the radius or grating length. The obtained results show that such a device may be useful in applications requiring fast and slow light pulse train pairs, such as optical switching, sensors, communications, and security applications.
Keywords
Fast and slow lights, Graphene, Material coupling effects, Micro-ring resonator, Surface plasmon wave
Divisions
photonics
Publication Title
Indian Journal of Physics
Volume
92
Issue
6
Publisher
Springer Verlag