Optical bistability with hybrid silicon-plasmonic disk resonators

Odysseas Tsilipakos, Emmanouil E. Kriezis
2014 Journal of the Optical Society of America. B, Optical physics  
Optical bistability with a hybrid silicon-plasmonic configuration consisting of a nonlinear traveling-wave (disk) resonator side-coupled with a bus waveguide is theoretically investigated. The nonlinear response is studied with a theoretical framework combining perturbation theory and temporal coupled-mode theory. For the CW case, a general closed-form expression is derived. The effect of the parameters entering in the expression on the bistability curve is thoroughly investigated and the
more » ... gated and the physical system is accordingly designed so as to exhibit minimum power threshold for bistability and maximum extinction ratio between bistable states. Finally, the temporal dynamics are assessed. The system can toggle between bistable states in approximately 5 ps and is thus suitable for ultrafast memory/switching applications.
doi:10.1364/josab.31.001698 fatcat:xkdni7gfuzffrhielrujp26mw4