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系統識別號 U0026-2208201316481200
論文名稱(中文) 研究基於電磁波引發透明的低光強四波混頻
論文名稱(英文) Studies on EIT-based four-wave mixing at low light levels
校院名稱 成功大學
系所名稱(中) 物理學系碩博士班
系所名稱(英) Department of Physics
學年度 101
學期 2
出版年 102
研究生(中文) 邱章凱
研究生(英文) Chang-Kai Chiu
學號 L26004137
學位類別 碩士
語文別 中文
論文頁數 91頁
口試委員 指導教授-陳泳帆
口試委員-陳應誠
口試委員-周忠憲
中文關鍵字 電磁波引發透明  四波混頻 
英文關鍵字 Electromagnetically induced transparency  Four-wave mixing 
學科別分類
中文摘要 本論文探討基於電磁波引發透明的四波混頻系統之低光強脈衝的轉換效率。在本研究架設的冷銣原子之N型結構四能階系統中,可利用光強約80μW/cm^2的驅動脈衝,相當於在原子吸收截面積(3λ^2/2π)中約有60顆光子的能量,使四波混頻轉換效率可達到4%,此結果與利用Harris的理論預測所得之結果一致[Phys. Rev. Lett. 82, 4611 (1999)]。此外,本研究之電磁波引發透明機制的四波混頻系統,其轉換效率最大可達到46%。
英文摘要 We report on an experimental observation of electromagnetically induced transparency (EIT) based four-wave mixing (FWM) in the pulsed regime at low light levels. The FWM conversion efficiency of ~ 4% was observed in a four-level system of cold 87Rb atoms using a driving pulse with a peak intensity of only ~ 80 μW/cm^2, corresponding to an energy of ~ 60 photons per atomic cross section (3λ^2/2π). The experimental data are consistent with the theoretical predictions proposed by Harris and Hau [Phys. Rev. Lett. 82, 4611 (1999)]. Additionally, a maximum conversion efficiency of ~ 46% was demonstrated with the EIT-based FWM scheme.
論文目次 第1章 緒論 1
1.1 簡介 1
1.2 動機 1
第2章 基本理論 2
2.1 電磁波引發透明 2
2.2 電磁波引發透明機制的四波混頻 12
2.2.1 四波混頻穩態解析解 15
2.2.2 單光子四波混頻 19
第3章 實驗系統與架設 23
3.1 冷原子系統 23
3.1.1 銣原子能階系統 23
3.1.2 磁光陷阱 25
3.1.3 暗區自發力光陷阱 28
3.2 電磁波引發透明系統 29
3.3 光幫浦準備單一賽曼態系統 32
3.4 電磁波引發透明機制的四波混頻 34
3.4.1 同向四波混頻 35
3.4.2 反向四波混頻 37
第4章 實驗結果與討論 39
4.1 電磁波引發透明、慢光、光儲存實驗 39
4.2 光幫浦準備單一賽曼態實驗 41
4.3 電磁波引發透明機制的四波混頻實驗 54
第5章 結論與展望 66
參考文獻 67
附錄 70
A. 光路徑架設與紀錄 70
B. 用光幫浦準備單一賽曼態的判斷方法 75
C. 準備單一賽曼態│5S1/2, F=1, m=0〉 78
C.1 用基態│5S1/2, F=1〉到激發態│5P3/2, F=0〉的光幫浦 78
C.2 用基態│5S1/2, F=1〉到激發態│5P3/2, F=1〉的光幫浦 84
D. 雙脈衝的光儲存量測方法 85
E. 補償地磁線圈參數紀錄 87
F. 偏振糾纏光子實驗的架設方法 90
參考文獻 [1] H.-Y. Lo, P.-C. Su, and Y.-F. Chen, "Low-light-level cross-phase modulation by quantum interference," Phys. Rev. A 81, 053829 (2010).
[2] S. G. Clark and A. S. Parkins, "Entanglement and entropy engineering of atomic two-qubit states," Phys. Rev. Lett. 90, 047905 (2003).
[3] D. Loss, and D. P. DiVincenzo, "Quantum computation with quantum dots," Phys. Rev. A 57, 120 (1998).
[4] S. E. Harris, J. E. Field, and A. Imamoğlu, "Nonlinear optical processes using electromagnetically induced transparency," Phys. Rev. Lett. 64, 1107 (1990).
[5] S. E. Harris, and L. V. Hau, "Nonlinear Optics at Low Light Levels," Phys. Rev. Lett. 82, 4611 (1999).
[6] H.-C. Chen, "Theoretical Study of Nonlinear Optics by Quantum Interference," Master’s thesis, NCKU (2011).
[7] B.-R. Tsai, "All-optical phase modulation using slow-light-based four-wave-mixing," Master’s thesis, NCKU (2012).
[8] Hau, L. V., Harris, S. E., Dutton, Z. and Behroozi, C. H., "Light speed reduction to 17 metres per second in an ultracold atomic gas," Nature (London) 397, 594 (1999).
[9] M. Fleischhauer and M. D. Lukin, "Dark-state polartions in electmagnetically induced transparency," Phys. Rev. Lett. 84, 5094 (2000).
[10] T. Peters, Y.-H. Chen, J.-S. Wang, Y.-W. Lin, and I. A. Yu, "Optimizing the retrieval efficiency of stored light pulses," Opt. Express 17, 6665 (2009).
[11] Y.-H. Chen, M.-J. Lee, W. Hung, Y.-C. Chen, Y.-F. Chen, and I. A. Yu, "Demonstration of the Interaction between Two Stopped Light Pulses," Phys. Rev. Lett. 108, 173603 (2012)
[12] S. Chu, Holberg, J. E. Bjorkholm, and A. Ashkin, "Three-dimensional viscous confinement and cooling of atoms by resonance radiation pressure," Phys. Rev Lett. 55, 48 (1985).
[13] C.-N. Cohen-Tannoudji, "Manipulating atoms with photons," Rev. Mod. Phys. 70, 707 (1998).
[14] Daniel Adam Steck, "Rubidium 87 D line Data," Available online at http://steck.us/alkalidata/.
[15] Y.-W. Cheng, "Setup and optimization of rubidium magneto-optical trap," Master’s thesis, NCKU (2009).
[16] S. Chu, Holberg, J. E. Bjorkholm, and A. Ashkin, "Experimental observation of opticaly trapped atoms," Phys. Rev. Lett. 57, 314 (1986).
[17] W. Ketterle, K. B. Davis, M. A. Joffe, A. Martin, and D. E. Pritchard, "High densities of cold atoms in a dark spontaneous-force optical trap," Phys. Rev. Lett. 70, 2253 (1993).
[18] Y.-C. Chen, "Four-Wave Mixing Using Quantum Interference in Cold Atoms," Master’s thesis, NCKU (2011).
[19] M.-J. Lee, Y.-H. Chen, I-C. Wang, and I.-A. Yu, "EIT-based all-optical switching and cross-phase modulation under the influence of four-wave mixing," Opt. Express 20, 11057 (2012).
[20] J.-X. Chen, "Generation of polarization-entangled photons using four-wave mixing in cold atoms," Master’s thesis, NCKU (2011).
[21] Y.-C. Hsu, "Homemade Etalon Filter with High Extinction Ratio," Undergraduate’s Thesis, NCKU (2011).
[22] D. A. Braje, V. Balić, S. Goda, G.Y. Yin, and S. E. Harris, "Frequency Mixing Using Electromagnetically Induced Transparency in Cold Atoms," Phys. Rev. Lett. 93, 183601 (2004).
[23] V. Balić, D. A. Braje, P. Kolchin, G.Y. Yin, and S. E. Harris, "Generation of Paired Photons with Controllable Waveforms," Phys. Rev. Lett. 94, 183601 (2005).
[24] W.-M. Hsu, Y.-H. Chen, J.-S. Wang, and I.-A. Yu, "Slow and stored light pulses in the presence of magnetic fields," J. Opt. Soc. Am. B 30, 002123 (2013).
[25] C.-K. Chiu, "The second-order correlation function of single photon source in coherent state," Undergraduate’s Thesis, NCKU (2011).
[26] P.-C. Guan and I. A. Yu, "Simplification of the electromagnetically induced transparency system with degenerate Zeeman states," Phys. Rev. A 76, 033817 (2007).
[27] E. Arimondo, "Coherent population trapping in laser spectroscopy," Prog. Opt. 35, 257-354 (1996).
[28] G. Alzetta, A. Gozzini, L. Moi, and G. Orriols, "Experimental-Method for Observation of Rf Transitions and Laser Beat Resonances in Oriented Na Vapor," Nuovo Cimento 36, 5-20 (1976).
[29] E. Arimondo and G. Orriols, "Non-Absorbing Atomic Coherences by Coherent 2-Photon Transitions in a 3-Level Optical-Pumping," Lett. Nuovo Cim. 17, 333-338 (1976).
[30] C.-H. Fang, "Studies on oscillation behavior of EIT-based light storage and retrieval," Master’s thesis, NCKU (2013).
[31] M.-C. Guo, "Quantum Storage of Single Photons," Master’s thesis, NCKU (2012).
[32] C.-Y. Chu, "Studies on EIT-based storage of single photons," Master’s thesis, NCKU (2013).
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