碩士 / 國立臺灣大學 / 光電工程學研究所 / 100 / In this thesis, a parallelized three-dimensional (3D) finite-difference time-domain (FDTD) method numerical simulator is developed by using the message passing interface (MPI) library coded in C++ language. The capabilities of the simulator are than demonstrated by studying two topics in metamaterials and plasmonics, respectively. The transmission/reflection spectra of metamaterial magnetic resonators with different parameters are calculated and a right-angled triangular prism is numerically designed to observe the negative-refractive-index properties of fishnet structure. For plasmonics, the spectra of total cross sections and the near fields of silver nano particles of different shapes including cubes, sphere-pairs, and nano plates, are investigated. It is shown that the phasor amplitude is larger when the wavelength is at the absorption-cross-section peak rather than the scattering-cross-section peak for the case of cubes. The FDTD obtained results are compared with those based on the pseudospectral time-domain (PSTD) method calculation. For the nano-plates, plate length along the incident electric polarization direction is found to be strongly correlated with the resonant wavelength for waves normally incident on the parallel plates.
| Identifer | oai:union.ndltd.org:TW/100NTU05124125 |
| Date | January 2012 |
| Creators | Chun-Ti Lu, 魯珺地 |
| Contributors | 張宏鈞 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 101 |
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