ABSTRACT
Surface plasmon polaritons (SPPs) are waves that propagate along an interface between a dielectric and a metal if the permittivity of the interface materials satises certain conditions. At low frequencies, metals are considered as good conductors; however, they behave very much like dielectrics at optical frequencies [1]. Owing to
2.1 General Background Theory .......................................................................... 31 2.1.1 Extraordinary Transmission of Light in Simple
and Chirped Structures ....................................................................... 32 2.1.2 Fundamentals of Surface-Enhanced Raman Scattering ..................... 35 2.1.3 Impedance Theory ..............................................................................36
