Resonant enhancement of Raman scattering in metamaterials with hybrid electromagnetic and plasmonic resonances

Sriram Guddala, Narayanarao Desai, S. Anantha Ramakrishna

A tri-layer metamaterial perfect absorber of light, consisting of (Al/ZnS/Al) films with the top aluminium layer patterned as an array of circular disk nanoantennas, is investigate…