Phase matching between two orthogonal modes in a gold two-wire plasmonic waveguide is achieved by geometric tuning, giving ~15x stronger second-harmonic generation from the antisymmetric mode and enabling cascaded SHG and an AND logic demonstration.
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Phase Matched Plasmonic Transmission Lines for Cascaded Second-Harmonic Generation as a Pathway to Nonlinear Logic Circuits
Phase matching between two orthogonal modes in a gold two-wire plasmonic waveguide is achieved by geometric tuning, giving ~15x stronger second-harmonic generation from the antisymmetric mode and enabling cascaded SHG and an AND logic demonstration.