en Plasmonic Square Ring Resonator Switch with Smooth Corner Bends تخصصی Special پژوهشي Research In this paper, all-optical switches based on plasmonic square ring resonator (PSRR) with smooth corner bends have been proposed. Both three and four ports nonlinear switches have been numerically analyzed and simulated by the finite-difference time-domain (FDTD) method. By applying Kerr nonlinear self-phase modulation (SPM) effect, it has been shown that in four port switches the output power ratio of 12.77dB can be achieved by the switching power of 11.84 (kW/m), whereas the switching power of 12 (kW/m) is needed for attaining the power ratio of 16.8dB in three port switches. PSRRs are suitable for using in photonic integrated circuits as all-optical switches because of their nanoscale size and low required switching power. In this paper, all-optical switches based on plasmonic square ring resonator (PSRR) with smooth corner bends have been proposed. Both three and four ports nonlinear switches have been numerically analyzed and simulated by the finite-difference time-domain (FDTD) method. By applying Kerr nonlinear self-phase modulation (SPM) effect, it has been shown that in four port switches the output power ratio of 12.77dB can be achieved by the switching power of 11.84 (kW/m), whereas the switching power of 12 (kW/m) is needed for attaining the power ratio of 16.8dB in three port switches. PSRRs are suitable for using in photonic integrated circuits as all-optical switches because of their nanoscale size and low required switching power. Nonlinear plasmonic switch, Plasmonic ring resonators, Self-phase modulation (SPM), Surface plasmon Nonlinear plasmonic switch, Plasmonic ring resonators, Self-phase modulation (SPM), Surface plasmon 741 744 http://opsi.ir/browse.php?a_code=A-10-1-289&slc_lang=en&sid=1 Najmeh Nozhat Najmeh Nozhat nozhat@sutech.ac.ir 10031947532846002695 10031947532846002695 Yes Faculty of Electrical Engineering, Shiraz University of Technology, Shiraz, Iran Faculty of Electrical Engineering, Shiraz University of Technology, Shiraz, Iran Nosrat Granpayeh Nosrat Granpayeh granpayeh@eetd.kntu.ac.ir 10031947532846002696 10031947532846002696 No Faculty of Electrical Engineering, K. N. Toosi University of Technology, Tehran, Iran Faculty of Electrical Engineering, K. N. Toosi University of Technology, Tehran, Iran