| DC 欄位 |
值 |
語言 |
| DC.contributor | 光電科學與工程學系 | zh_TW |
| DC.creator | 余宸逸 | zh_TW |
| DC.creator | Chen-Yi Yu | en_US |
| dc.date.accessioned | 2021-1-21T07:39:07Z | |
| dc.date.available | 2021-1-21T07:39:07Z | |
| dc.date.issued | 2021 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN=108226032 | |
| dc.contributor.department | 光電科學與工程學系 | zh_TW |
| DC.description | 國立中央大學 | zh_TW |
| DC.description | National Central University | en_US |
| dc.description.abstract | 本論文將PB-phase之超穎介面簡化為波板模型，入射光受超穎介面轉為正交偏振態帶有幾何相位，剩餘通過的光帶有動態相位。吾人利用等效介質理論計算超穎介面Unit cell之非等向性之折射率，透過設計Unit cell厚度達到半波板來消除動態相位之影響，讓超穎介面的整體相位為幾何相位效應。將設計完之Unit cell排列為梯度表面超穎介面之相位分布組成Meta-device，透過粒子群最佳化來對Meta-device之相位分布均勻性做優化，使其繞射效率提升。 | zh_TW |
| dc.description.abstract | We simplify the PB-phase supernatural interface into a waveplate model where the incident light is polarized orthogonally by the supernatural interface into a geometric phase and the remaining passing light band has a dynamic phase. We calculate the non-isotropic refractive index of the unit cell of the supernatural interface by using the effective medium approximation theory and design the unit cell to be half-wave plate to eliminate the dynamic phase effect. The phase distribution of the designed unit cell is arranged as a gradient surface to form a Meta-device, and the phase distribution uniformity of the Meta-device is optimized by particle cluster optimization to improve the diffraction efficiency. | en_US |
| DC.subject | 幾何相位 | zh_TW |
| DC.subject | 超穎表面 | zh_TW |
| DC.subject | 超穎透鏡 | zh_TW |
| DC.subject | 等校介質近似理論 | zh_TW |
| DC.subject | PB-Phase | en_US |
| DC.subject | metasurface | en_US |
| DC.subject | metalens | en_US |
| DC.subject | EMT | en_US |
| DC.title | 全介電幾何相位超穎表面的設計、優化及簡化模型 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | Design, optimization and simplified model for all-dielectric geometric phase metasurface | en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |