Lattice-induced plasmon hybridization in metamaterials.

We explore an inherent connection between two fundamental concepts of physics-resonance (eigen mode) hybridization and lattice effect in sub-wavelength periodic structures. Our study reveals that coupling with lattice mode is the prime deciding factor to determine the nature, position, and line shape of the hybridized states. Modulating lattice modes can effectively control mode hybridization and tune the relative position of hybridized modes [symmetric (electric), anti-symmetric (magnetic)] without changing any other structural dimensions in subwavelength plasmonic metamaterials. Outcomes of this study can be exploited in designing linear and nonlinear photonic structures toward futuristic meta devices.