New structure for an all-optical logic gate based on hybrid plasmonic square-shaped nanoring resonators and strips

Seven all-optical logic gates based on hybrid plasmonic squared-shaped nanoring resonators and strips are proposed, designed, numerically analyzed using finite element method with COMSOL software package version 5.5. Constructive destructive interferences between the input port(s) control main operating principles used to produce proposed gates. The ratio of output optical power at a single port which is called transmission threshold selected be 30% resonance wavelength 1310 nm. All performed in structure 400 nm × dimensions performance measured according values versus range from 800 2000 nm, contrast ratio, modulation depth, insertion loss. exceeds 100% five gates, 146% NOT NAND 202.3% OR, AND, XNOR depth scores 99.75% gate, 98.5% NOR 97.67% NOT, 95.29% for XOR gate.