博碩士論文 982202034 詳細資訊




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姓名 黃家豪(Chiahao Huang)  查詢紙本館藏   畢業系所 物理學系
論文名稱 二維光子晶體耦合共振腔之共振模態調變研究
(Tuning the cavity modes in two-dimensional photonic crystal coupled cavities)
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摘要(中) 本論文以光致螢光光譜探討光子晶體耦合L3共振腔的耦合現象。利用空間距離調變觀察到共振波長分裂量與共振腔耦合強度成正比,兩者隨著共振腔距離增加而減少;利用孔柱移動調變觀察到空氣孔柱的移動使共振腔大小的差異增大,耦合強度減弱;利用基板加熱調變觀察到隨著溫度升高,耦合共振波長紅移,但基板折射率的改變對共振腔耦合強度影響不大;利用雷射局部加熱調變觀察到兩共振腔相對折射率的改變使波長分裂量增大,共振腔耦合強度減弱,且當雷射功率大於11mW時看到了光譜譜線出現動態分岔現象,推測可能是光子晶體薄膜產生熱震盪所致。
摘要(英) In this thesis, we investigate the coupling behavior of photonic crystal coupled L3 cavities through micro-photoluminescence (μ-PL) spectroscopy. By spatial separation tuning, we found that the mode splitting is proportional to the cavity coupling strength, and both of them decrease with the increasing distance between the two cavities. By air-holes-shift tuning, the movement of air holes results in size detune of the two cavities and decreases the coupling strength. By substrate heating tuning, the rising temperature causes the resonant wavelength red shift, but the change of refractive index of substrate does not influence the coupling strength significantly. By laser local heating tuning, the refractive index detune of the two cavities increases the mode splitting and decreases the cavity coupling strength. While the laser power exceeds 11mW, we observe spectral bifurcation phenomenon which results from the thermal vibration on photonic crystal membrane.
關鍵字(中) ★ 光子晶體
★ 耦合共振腔
關鍵字(英) ★ photonic crystal
★ coupled cavities
論文目次 中文摘要 .......................................... i
英文摘要 ......................................... ii
致謝 ........................................... iii
目錄 ............................................ iv
圖目錄 .......................................... vi
表目錄 .......................................... ix
第一章 簡介 ...................................... 1
第二章 基本原理 ................................... 2
2-1 光子晶體 ..................................... 2
2-2 光子晶體共振腔 ................................ 4
2-3 光子晶體耦合共振腔 ............................. 6
2-3-1 共振腔耦合機制 .............................. 7
2-3-2 共振模態模擬 ................................ 8
2-3-3 模態調變模擬 ............................... 10
第三章 試片介紹與實驗原理 .......................... 14
3-1 試片介紹 .................................... 14
3-1-1 試片磊晶結構 ............................... 14
3-1-2 共振腔製程 ................................. 15
3-1-3 共振腔設計 ................................. 17
3-2 顯微光致螢光光譜 .............................. 19
第四章 實驗結果與討論 .............................. 22
4-1 共振模態鑑定 ................................. 22
4-2 共振模態調變 ................................. 27
4-2-1 空間距離調變 ............................... 27
4-2-2 孔柱移動調變 ............................... 40
4-2-3 溫度調變 .................................. 48
第五章 結論 ..................................... 59
參考文獻 ......................................... 60
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[2] K. Hennessy et al. “Quantum nature of a strongly coupled single quantum dot–cavity system”, Nature 445, 896-899 (2007)
[3] E. Yablonovitch,“ Inhibited Spontaneous Emission in Solie-State Physics and Electronics ”, Phys. Rev. Lett. 58,2059 (1987)
[4] S. John, “ Strong localization of photons in certain disorder dielectric superlattices ”, Phys. Rev. Lett. 58, 2486 (1987)
[5] Y. Akahane,“ High-Q photonic nanocavity in a two-dimensional photonic crystal ”, Nature, 425, 944 (2003)
[6] E. Ozbay, “ Investigation of localized coupled-cavity modes in two-dimensional photonic bandgap structure ”, IEEE Journal of Quantum Electronics, 38, 837 (2002)
[7] A. L. Reynolds, “ Coupled Defects in Photonic Crystals ”, IEEE Trans. Microwave Theory Tech. 49, 1860 (2001).
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[9] A. R. A. Chalcraft “ Mode structure of coupled L3 photonic crystal cavities ”, Opt. Express 19, 5670 (2011)
[10] S.Lam “ Coupled Resonant Modes of Dual L3-Defect Planar Photonic Crystal Cavities ”, Opt. CLEO (2008)
[11] K. A. Atlasov, “ Wavelength and loss splitting in directly coupled photonic-crystal defect microcavities ”, Opt. Express 16, 16255 (2008)
[12] S. Moehl “ Solid immersion lens-enhanced nano-photoluminescence: Principle and applications ”, J. Appl. Phys. 93, 6265 (2003)
[13] A. R. A. Chalcraft “ Mode structure of the L3 photonic crystal cavity ”, Appl. Phys. Lett. 90, 241117 (2007)
[14] H. Lin et al. “Strong coupling of different cavity modes in photonic molecules formed by two adjacent microdisk microcavities”, Opt. Express 18, 23948-23956 (2010)
[15] S. Mosor “ Scanning a photonic crystal slab nanocavity by condensation of xenon ”, Appl. Phys. Lett. 87, 141105 (2005)
[16] W. Wagner “ International Equations for the Pressure along the Melting and along the Sublimation Curve for Ordinary Water Substance ” J. Phys. Chem. Ref. Data, Vol 23, No 3, 1994
[17] F. Intonti “ Tuning of photonic crystal cavities by controlled removal of locally infiltrated water ”, Appl. Phys. Lett. 95, 173112 (2009)
指導教授 徐子民(T.M. Hsu) 審核日期 2011-7-7
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