Thin-film Interference for Surface Plasmon Resonance System and Ultra-thin Film Ultraviolet Super Absorber Structure
Thin-film interference is the basic mechanism of surface plasmon resonance system and ultra-thin film ultraviolet super absorber structure. In optical interference, the reflection and refraction of light occurred between two media with different refractive indices can be described by Fresnel's equations. In this thesis, a conventional surface plasmon resonance (SPR) system and an ultra-thin film device capable of highly absorbing light in the ultraviolet (UV) spectral range were both designed using Fresnel's equations and numerically simulated using COMSOL Multiphysics finite-element-based electromagnetics solver. Experimental results were then presented to validate analytical and numerical modeling.