Dissertation/ Thesis
2D Numerical Analysis and Potential Applications of The Photonic Nanojet
| العنوان: | 2D Numerical Analysis and Potential Applications of The Photonic Nanojet |
|---|---|
| Alternate Title: | 二維光奈米流之數值分析及其前瞻性的應用 |
| المؤلفون: | Wei-Tien Chang, 張維典 |
| Thesis Advisors: | Snow H. Tseng, 曾雪峰 |
| سنة النشر: | 2007 |
| المجموعة: | National Digital Library of Theses and Dissertations in Taiwan |
| الوصف: | 95 The near-field scattering properties of dielectric micro-cylinders are investigated using the FDTD method. In particular, physical phenomena involving localized photonic “nanojets” are explored. Firstly, it is shown that photonic nanojets exhibit waists as narrow as 40nm (smaller than the diffraction limit), and propagate over several optical wavelengths without significant diffraction. Secondly, by inserting a nanometer-scale particle at surface of a semi-cylinder, it is shown that a photonic nanojet increases the backscattering of visible light. Potential applications of this "super-enhanced” backscattering phenomenon include visible-light detection and characterization of nanoparticles as small as clusters of a few hundred atoms. Other potential applications include manipulation and modification of nanoparticles. Most importantly, the photonic nanojet provides a useful means to overcome the diffraction limit. |
| Original Identifier: | 095NTU05124021 |
| نوع الوثيقة: | 學位論文 ; thesis |
| وصف الملف: | 69 |
| الاتاحة: | http://ndltd.ncl.edu.tw/handle/83749933848088043380 |
| رقم الانضمام: | edsndl.TW.095NTU05124021 |
| قاعدة البيانات: | Networked Digital Library of Theses & Dissertations |
| الوصف غير متاح. |