High-sensitivity plasmonic sensing of Au-Ag alternating nanograting with Kretschmann configuration
We theoretically investigate an Au-Ag alternating nanograting integrated with a Kretschmann prism-coupled configuration for high-performance plasmonic refractive-index (RI) sensing. Finite-element simulations show that TM-polarized light incident from the BK7 prism side can efficiently excite surface plasmon resonance...