Theory and Applications of Goos-Hänchen Shift Based On Guided Mode Resonance
An innovative approach to describe and implement the Goos-Hänchen shift theory and applications in the nano-photonic area is presented. The Goos-Hänchen shift is an optical phenomenon in which linearly polarized light experiences certain small positive lateral shift under total internal reflection (TIR). In this dissertation, grating structures which can achieve giant negative Goos-Hänchen shifts are designed. It can be applied to realization of optical bistability and achieving zero group velocity of light inside a dielectric slab waveguide. We’ve achieved a Goos-Hänchen shift at 5000 times of the operating wavelength, designed switching device beyond π, and designed a slab waveguide that can trap a “rainbow” (light covering the entire visible spectrum) inside. This research could provide a hardware building block for future all-optical processing.