本論文探討以氮化銦產生兆赫波輻射，以時間解析兆赫波系統(Terahertz Time-Domain Spectroscopy)的架設與氮化銦(InN)產生兆赫波的研究。我們將氮化銦樣品置換砷化銦後放在一旋轉載台上，旋轉不同角度，觀察所產生的兆赫波輻射強度與波形，探討氮化銦樣品產生兆赫波的機制與影響波形的因素。研究在相近載子濃度、載子遷移率、不同能隙以及不同結構之下的氮化銦(Zb-InN, W-InN)對於產生兆赫波輻射強度的影響。最後我們討論材料本身表面電場效應(surface field effect)、光電導效應(Photo Dember effect)、疊層缺陷(stacking fault)以及c-plane、m-plane影響氮化銦產生兆赫波。

We studied terahertz radiation from InN in our paper. We set up " Terahertz Time-Domain Spectroscopy system" and investigate Terahertz emission from InN. We take our sample(InN) in the rotation stage and we rotate different angle to detect the THz intensity data and wave shape and also the mechanisms of THz wave emitted. We research the influence from different background carrier density, band gap, mobility and structure(Zb-InN, W-InN) of InN to produce Terahertz radiation. Finally, we dicuss the THz amplitude and shape influenced from the internal surface field effect, Photo Dember effect, stacking fault, c-plane and m-plane from InN.

誌謝................................................................................................................................i
摘要...............................................................................................................................ii
Abstract....................................................................................................................... iiii
第一章 導論..................................................................................................................1
1-1兆赫波發展史...............................................................................................2
1-2文獻探討-利用InN產生兆赫波之相關研究................................................6
第二章 實驗原理..........................................................................................................9
2-1 光電導偶極天線產生及偵測兆赫波的機制與原理....................................9
2-2 光電導偶極天線產生及偵測兆赫波原理推導..........................................11
2-3 光電導效應& 表面電場效應產生兆赫波實驗原理...............................13
2-4 光電導效應& 表面電場效應產生兆赫波之原理推導...........................15
2-5 在ZnTe及Balance detector方面...............................................................19
2-6 結論..............................................................................................................20
第三章 實驗架設........................................................................................................21
3-1 兆赫波光路架設..........................................................................................21
3-2 鎖相放大器..................................................................................................26
3-3 Balance Detector............................................................................................28
第四章 樣品介紹與實驗結果....................................................................................30
4-1樣品介紹.......................................................................................................30
4-2實驗討論.......................................................................................................33
4.3實驗結果........................................................................................................37
第五章 結論................................................................................................................72
參考文獻......................................................................................................................73

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