Plasmonic Metamaterials: From Fundamental Resonances to Light Manipulation and Applications
Date Issued
2015
Date
2015
Author(s)
Wu, Pin-Chieh
Abstract
Photonic metamaterials composed of artificial structures in subwavelength scale exhibit many unconventional properties for light manipulation, and it is also very promising for photonic devices and high-sensitivity optical sensor. In this dissertation, a novel three dimensional vertical split-ring resonators (VSRRs) as well as tunable metasurface device will be designed and investigated. The resonant properties arose from the electric and magnetic interactions between the VSRR and light are theoretically and experimentally studied. Tuning the configuration of VSRR unit cells are able to generate various novel coupling phenomena such as magnetic plasmonic hybridization and Fano resonance. The VSRR-based high-sensitivity refractive-index sensor and optical metasurface are studied as well. For the development of tunable metasurface device, the microfluidics technology is employed for the control of the shapes, dimensions, and the configuration of the liquid metal antennas. Based on the micro-fluidic-meta-surface, the reflection direction can be tuned actively for the dynamic beam steering.
Subjects
Plasmonic Metamaterials
Hybridization
Fano Resonance
Split-ring resonators
Microfluidics
Type
thesis
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