Low-power, ultrafast, and dynamic all-optical tunable plasmonic analog to electromagnetically induced transparency in two resonators side-coupled with a waveguide system

摘要: We theoretically and numerically investigate a low-power, ultrafast, dynamic all-optical tunable plasmonic analog to electromagnetically induced transparency (EIT) in two nanodisk resonators side-coupled metal-insulator-metal waveguide system. The optical Kerr effect is enhanced by the slow light of EIT-like based on graphene-Ag composite material structures with giant effective nonlinear coefficient. modulation method applied improve tuning rate response time subpicoseconds or even femtoseconds. With dynamically propagation phase waveguide, π-phase shift transmission spectrum system achieved under excitation pump an intensity as low 5.85 MW/cm2. group delay controlled between 0.09 0.4 ps. All observed schemes are analyzed rigorously through finite-difference time-domain simulations coupled-mo...