| DC 欄位 |
值 |
語言 |
| DC.contributor | 光電科學與工程學系 | zh_TW |
| DC.creator | 鄭鈺潔 | zh_TW |
| DC.creator | Yu-Chieh Cheng | en_US |
| dc.date.accessioned | 2011-7-25T07:39:07Z | |
| dc.date.available | 2011-7-25T07:39:07Z | |
| dc.date.issued | 2011 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:444/thesis/view_etd.asp?URN=992206038 | |
| 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 | 本論文選擇在氮化鎵材料製作二維漸進式週期光子晶體共振腔，使光有效侷限於其中。以平面波展開法(Plane Wave Expansion, PWE) 與有限時域差分法(Finite-Difference-Time-Domain, FDTD)來分析漸進式週期光子晶體共振腔之特性，計算出結構參數，也以光侷限之方法來分析共振腔在垂直方向上的損耗，以及解釋為何高階模態會有較高的Q值。在室溫下架設微光激發光系統(Micro-Photoluminescence,???PL)，量測結果發現，當激發光源功率大於0.9 mW時，成功量得於波長於?=362 nm 之雷射訊號，以高斯擬合得到半高寬為0.04 nm，換算 Q值為1×104。
| zh_TW |
| dc.description.abstract | In this study, the photonic crystals nanocavity has been designed, fabricated, and characterized in GaN bulk materials with the heterostructure which could achieve extremely high-Q factors. The device characterization was performed at room temperature using a micro-photoluminescence system. We obtain a lasing signal whose full width at half maximum (FWHM) obtained by Gaussian curve fitting is ??=0.04 nm for ?=362 nm and the threshold of excitation power is found to be 0.9 mW, corresponding to the power density of 17 kmW/cm2. The Q-factor of the cavity is as high as 104.
| en_US |
| DC.subject | 共振腔 | zh_TW |
| DC.subject | 光子晶體 | zh_TW |
| DC.subject | cavities | en_US |
| DC.subject | Photonic crystals | en_US |
| DC.title | 漸進式週期光子晶體共振腔之研究 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | Study of Graded Photonic Crystal Cavities | en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |