Analytical prediction for quasi-TE mode in silicon nanowire optical rectangular waveguide

Theoretical and numerical mode estimation performed on silicon nanowire optical rectangular waveguide (SNORW) is presented for on-chip communication in photonic integrated circuits. The propagation behavior of electric magnetic field investigated, where zeroth order found dominating inside the nanoslot region SNORW, circularly symmetric quasi-TE to propagate. This SNORW structure supports hybrid mode, which derives its behavioral root from functional slot waveguide. In periodic nanowire-based waveguide, it that envelope intensity closely matches with guiding properties match type analyzed by full-vectorial finite element method (FEM) analytical expression derived using effective index method. Analytical expressions are used express Quasi-TE terms material profile physical parameters. results obtained S, C L wavelength bands compared earlier reported work theoretical equations also FEM results.