Design and Applications of Nano-cylinder Resonators in Metals for Light Absorption
Date Issued
2009
Date
2009
Author(s)
Tsai, Shih-Pin
Abstract
Nanocavities in metals have been demonstrated to act as efficient anti-reflection devices. Cylindrical cavities in a metallic substrate can form good optical resonators for enhancing the light intensity and reducing the reflection greatly in a wide range of angles of incidence. In this thesis, the simulation tools, RSoft and COMSOL, are used for the analysis of the resonant modes in the nano-cylinder resonators. It is observed that several peaks in the reflection spectrum can be obtained for the nano-cylinder resonators of different sizes as well as filled with different materials. Different resonant modes exhibit different reflection levels and allow different incident angles. In this thesis, nano-cylinder resonators can be used as highly-sensitive optical sensors and as potential anti-reflection devices for solar-cells. ey word: metal resonator、optical sensor、solar cell、antireflection structure、Rigorous Coupled-Wave Analysis、Finite Element Method.
Subjects
metal resonator
optical sensor
solar cell
antireflection structure
Rigorous Coupled Wave Analysis
Finite Element Method
Type
thesis
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