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A nonlinear plasmonic nanoswitch with low power consumption is presented based on the cross-phase modulation (XPM) effect in centrosymmetric metals. XPM is exploited to change the nonlinear parameters of media for enhancement of the second-harmonic generation (SHG) process. The XPM-enhanced SHG through applying a pump signal is analyzed using the two-dimensional finite-difference time-domain method...
In this paper we propose a high speed, low energy consumption, Mach-Zehnder interferometer modulator. Bend-less three-waveguide directional couplers are employed as splitter/combiner to diminish the overall footprint while keeping the insertion loss of the structure negligible. Si-polymer-metal hybrid plasmonic waveguide is used for the Mach-Zehnder arms where the phase shift will occur. Strong confinement...
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