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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 朱士維(Shi-Wei Chu) | |
| dc.contributor.author | Ming-Yin Lee | en |
| dc.contributor.author | 李明穎 | zh_TW |
| dc.date.accessioned | 2021-06-16T16:22:50Z | - |
| dc.date.available | 2017-02-16 | |
| dc.date.copyright | 2013-02-16 | |
| dc.date.issued | 2013 | |
| dc.date.submitted | 2013-01-28 | |
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Fendler, “Exploitation of Localized Surface plasmon Reso- nance.” Advanced Materials, 21, 817, 2009 [30] M. Cardona, “Modulation spectroscopy.” New York : Academic Press, 1969. [31] A. Taflove, S. C.Hagness, “Computational Electrodynamics The Finite- Difference Time-Domain Method.”Artech House, 2005 [32] M. A. Alsunaidi, A A. Al-Jabr, “A General ADE-FDTD Algorithm for the Simulation of Dispersive Structures.” IEEE Photonics Technology Letters, 21, 817, 2009 [33] A. Vial, ”Implementation of the critical points model in the recursive convo- lution method for modelling dispersive media with the finite-difference time domain method.” Journal of Optics A-pure and Applied, 9, 745, 2007 [34] D. F. Kelley, R. J. Luebbers, “Piecewise linear recursive convolution for dis- persive media using FDTD.” IEEE Transactions on Antennas and Propagation, 44, 792, 1996 [35] P. B. Johnson, R. W. Christy, “Optical Constants of the Noble Metals.” Phys- ical Review B, 6, 4370, 1972 [36] J. H. Greene, A. Taflove “General vector auxiliary differential equation finite- difference time-domain method for nonlinear optics.” Optics Express, 14, 8305 ,2006 [37] P. Sasanpoura, B. Rashidianb, M. Vossoughi “Fluorescent microscopy using localized excitation source with gold nanotriangles: A computational study.” Photonics and Nanostructures - Fundamental and Applicationa, 9 219, 2011 [38] 張榮興, ”Visual Basic 數值解析與工程應用.” 全威圖書有限公司, 2002. [39] C. F. Bohren, D. R. Huffman, “Absorption and Scattering of Light by Small Particle.” New York : Wiley, 1998 [40] G. Mie, ”Articles on the optical characteristics of turbid tubes, especially col- loidal metal solutions.” Annaled Der Phtsik, 25, 377, 1908 [41] 蘇東榆, ” 奈米粒子非線性散射特性研究與應用”, 碩士論文, 國立臺灣大學物 理研究所, 2012 [42] J. H. Huang, R. L. Chang, P. T. Leung, D. P. Tsai, ”Nonlinear dispersion relation for surface plasmon at a metal-Kerr medium interface,” Optics Com- munications 282, 1412, 2009 | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/63102 | - |
| dc.description.abstract | 散射是常見的物理現象。也因為如此，讓我們考慮到是否有其方法可控制散
射。而近年來，金奈米粒子的吸收現象被廣泛的研究，甚至在近幾年發現到金奈米粒子的吸收會因為光強度的增加而達到飽和。考慮到吸收與散射皆為光學性質中常見之現象，提供給本研究一個方向: 金奈米粒子是否有飽和散射之現象、可否利用飽和現象去控制散射。 本篇論文希望提供關於單顆金奈米粒子散射現象之理論基礎。因此我們利用時域有限差分法 (finite-difference time-domain，簡稱 FDTD) 去模擬二維金奈米球與金奈米圓柱之散射性質。由於 FDTD 是在時域中進行，故我們使用 recursive convolution 將描述金屬色散介電常數的 Drude critical point 模型的頻域轉為適合在時域中。此外，我們在自製的模擬程式中加入了三階項的極化率，目的是為了探討金奈米粒子中之非線性光學現象。 本論文分成兩大重點: (1) 金奈米粒子 (金奈米球、金奈米圓柱) 的飽和散射現象 (2) 利用金奈米圓柱中兩軸散射的耦合來控制散射 結果顯示，無論飽和或是耦合現象都來自高次項的極化率。我們可以利用提高入射光強度使高次項極化率效應顯現，並用來抑制散射。 | zh_TW |
| dc.description.abstract | In physics, scattering and absorption are general phenomenon. The saturable absorption has been observed in several kinds of metal nanostructures, and absorption can be saturable. Nevertheless, there has been no report for saturation of scattering before. The purpose of this work is to provide a theoretical basis for the saturable scattering, and use saturation to suppress scattering.
We use finite-difference time-domain (FDTD) method, to characterize scattering in a single gold nanoparticle (GNP). To obtain spectral response with FDTD, Drude critical point model as well as recursive convolution are adopted to transform frequency domain into time domain. The correctness of this simulation is checked by comparing with experimental results of the scattering spectrum of GNPs with different sizes. In addition, to examine the saturation effect, third order susceptibilities χ (3) are included in our model. Correlated to the experimental observation,χ (3) of a single GNP can be deduced from our simulation. The results show that saturation is contribute by higher susceptibility, and we can enhance scattering of one mode to suppress scattering of the other mode in a single gold nanorod. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-16T16:22:50Z (GMT). No. of bitstreams: 1 ntu-102-R99222056-1.pdf: 1282626 bytes, checksum: 9ff8491fa3f5d5d5920916a89627d038 (MD5) Previous issue date: 2013 | en |
| dc.description.tableofcontents | 1 簡介 8
1.1 文獻回顧 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.2 研究動機 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1.3 論文內容及架構 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2 金屬性質簡介 12 2.1 Drude critical point model . . . . . . . . . . . . . . . . . . . . . . . . 12 2.2 表面電漿與侷限表面電漿 . . . . . . . . . . . . . . . . . . . . . . . . 13 3 時域有限差分法 17 3.1 Maxwell’s Equation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.2 二維系統中的馬克斯威爾方程 . . . . . . . . . . . . . . . . . . . . . . 18 3.3 中央差分法 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 3.4 馬克斯威爾方程離散化過程 . . . . . . . . . . . . . . . . . . . . . . . 20 3.5 金奈米粒子之程式化模型 . . . . . . . . . . . . . . . . . . . . . . . . 23 3.6 非線性下的金奈米粒子模擬 . . . . . . . . . . . . . . . . . . . . . . . 24 3.7 FDTD 之程式流程 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 4 數值結果及分析 29 4.1 模擬架設 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 4.2 模擬數值設定 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 4.3 Mie theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 4.4 在線性 FDTD 情況下的 GNP(金奈米球、金奈米圓柱) 散射頻譜 . . 33 4.5 非線性金奈米球模擬與實驗比較之結果 . . . . . . . . . . . . . . . . . 36 4.6 非線性金奈米球模擬結果與討論 . . . . . . . . . . . . . . . . . . . . 39 4.7 非線性金奈米圓柱模擬設定、結果及其討論 . . . . . . . . . . . . . . 42 4.8 利用非線性金奈米圓柱達成耦合散射 . . . . . . . . . . . . . . . . . . 44 5 結論 56 參考文獻 58 | |
| dc.language.iso | zh-TW | |
| dc.subject | 耦合 | zh_TW |
| dc.subject | 散射 | zh_TW |
| dc.subject | 電漿 | zh_TW |
| dc.subject | 金 | zh_TW |
| dc.subject | 奈米粒子 | zh_TW |
| dc.subject | 時域有限差分法 | zh_TW |
| dc.subject | 飽和 | zh_TW |
| dc.subject | gold | en |
| dc.subject | nanoparticle | en |
| dc.subject | finite difference time domain | en |
| dc.subject | coupling | en |
| dc.subject | saturation | en |
| dc.subject | scattering | en |
| dc.subject | plasmon | en |
| dc.title | 利用時域有限差分法模擬金奈米粒子之飽和散射與耦合現象 | zh_TW |
| dc.title | Saturation and Coupling Scattering from a Single Gold Nanoparticle by FDTD Simulation | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 101-1 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 蔡定平(Din Ping Tsai),曾雪峰(Snow H. Tseng) | |
| dc.subject.keyword | 金,奈米粒子,時域有限差分法,耦合,飽和,散射,電漿, | zh_TW |
| dc.subject.keyword | gold,nanoparticle,finite difference time domain,coupling,saturation,scattering,plasmon, | en |
| dc.relation.page | 63 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2013-01-29 | |
| dc.contributor.author-college | 理學院 | zh_TW |
| dc.contributor.author-dept | 物理研究所 | zh_TW |
| 顯示於系所單位： | 物理學系 | |
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