Full-wave analysis of metallic structures at optical frequencies

This thesis presents the theoretical background and the full-wave analysis of metallic structures at optical frequencies. The optical properties of metals and the related plasmonic effects are reviewed. Both the frequency-domain and time-domain methods for simulating the structures are discussed. The finite element method is applied to study the scattering from the metallic structures in the frequency domain. The simulation results are shown for two-dimensional structures that include infinitely long metallic cylinders with various cross sections at optical frequencies. The discontinuous Galerkin time-domain (DGTD) method is implemented to study metallic structures at optical frequencies. The formulation of the DGTD method is derived to include the dispersive material models for the metals. Efficient implementations of the DGTD method for studying periodic structures are also realized. The simulation results of applying the DGTD method to model and simulate two-dimensional metallic devices at optical frequencies are presented for both stand-alone and periodic structures.

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Electrical & Computer Engr

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Zeng, Yunjia

Contributors dc:contributor

• Jin, Jianming

• Plasmonics
• Finite Element Method (FEM)
• Discontinuous Galerkin Time-Domain (DGTD)
• Numerical analysis

Statement dc:rights

• Copyright 2014 Yunjia Zeng

Language dc:language

en

Handle dc:identifier

http://hdl.handle.net/2142/50476

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/50476