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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/7042

    Title: 具指向性微結構之設計;The Study of Micro-Structured Arrays with High Directionality
    Authors: 簡智偉;Chih-Wei Chien
    Contributors: 光電科學研究所
    Keywords: 發光二極體;微結構;指向性;Light emitting diode;Directionality;Micro-structured
    Date: 2008-07-08
    Issue Date: 2009-09-22 10:35:40 (UTC+8)
    Publisher: 國立中央大學圖書館
    Abstract: 本論文中,我們利用有限時域差分法,來分析微米以下週期性結構之繞射特性,並針對藍光Thin-GaN LED設計具指向性之繞射光學結構。論文內容主要分為兩大部分:(一) 在數值計算上,我們將以有限時域差分法做為主要計算方法,並分析不同結構參數對指向性之貢獻與影響。(二) 以此優化之週期性結構參數做二維排列,進而設計具指向性、高效率藍光Thin-GaN LED。In this thesis, we apply finite-difference time domain algorithm to analyze the characteristic of diffraction of the sub-wavelength periodic structure. Accordingly, we design optical diffraction structures with high directionality for Thin-GaN blue LED. The content of this thesis can be divided into two parts: a.)In numerical calculation, we use finite-difference time domain algorithm to calculate the directionality of various structures, and try to optimize the structure. b.)According to the optimized result, we extend the structure to a two-dimensional form. Finally we try to design the structure for a Thin-GaN blue LED with high directionality and high efficiency.
    Appears in Collections:[光電科學研究所] 博碩士論文

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