我們實驗研究在賽曼簡併態上，基於多重電磁波引發透明系統間的干涉所造成的光存取振盪行為。本實驗是在光學密度約20的冷銣原子中所進行。我們在光存取實驗中量測取出光脈衝隨著不同外加磁場強度的震盪頻率，實驗結果與理論預測吻合。此外，藉由量測光存取震盪頻率的方法，我們可以將環境的殘留磁場減少到小於1個毫高斯。

We experimentally study on the oscillation behavior of light storage and retrieval due to the interference effect of multiple electromagnetically-induced-transparency systems in Zeeman degenerate states. The experiment is performed in cold Rubidium atoms with an optical density of about 20. We measure the oscillation frequency of the retrieved light as a function of the strength of the external magnetic field. Comparison between the experimental data and theoretical predictions shows good agreement. Moreover, we can reduce the residual magnetic field to below 1 mG with this method.

[1] M. Fleischhauer, A. Imamoglu, and J. P. Marangos, “Electromagnetically induced transparency: Optics in coherent media,” Rev. Mod. Phys. 77, 633-673 (2005).

[2] L. V. Hau, S. E. Harris, Z. Dutton, and C.H. Beroozi, Nature 397, 594 (1999).

[3]M. M. Kash, V. A. Sautenkov, A. S. Zibrov, L. Hollberg, G. R.Welch, M. D. Lukin, Y. Rostovtsev, E. S. Fry, and M. O. Scully, “Ultraslow Group Velocity and Enhanced Nonlinear Optical Effects in a Coherently Driven Hot Atomic Gas,” Phys. Rev. Lett. 82, 5229-5232 (1999).

[4] C. Liu, Z. Dutton, C. H. Behroozi, and L.V. Hau, Nature 409, 490 (2001).

[5] D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).

[6] A. V. Turukhin, V. S. Sudarshanam, M. S. Shahriar, J. A. Musser, B. S. Ham, and P. R. Hemmer, “Observation of Ultraslow and Stored Light Pulses in a Solid,” Phys. Rev. Lett. 88, 023602 (2001).

[7] Yu-Wei Cheng. Setup and optimization of rubidium magneto-optical trap. Master’s thesis,NCKU (2009).

[8] Chu, S., Bjorkholm, J. E., Ashkin, A. & Cable, A. Experimental observation of optically trapped atoms. Phys. Rev. Lett. 57, 314 (1986).

[9] Hao-Chung Chen, “Theoretical Study of Nonlinear Optics by Quantum
Interference” Master Thesis ,NCKU (2011)

[10] Bing-Ru Tsai, All-optical phase modulation using slow-light-based four-wave mixing,Master Thesis ,NCKU (2011)

[11] S. E. Harris, J. E. Field, and A. Kasapi, Phys. Rev. A 46, R29 (1992).

[12] M. Fleischhauer and M. D. Lukin ,”Dark-State Polaritons in Electromagnetically
Induced Transparency”, Phys. Rev. Lett. 84, 5094–5097 (2000)

[13] S. D. Jenkins, D. N. Matsukevich, T. Chaneliere, A. Kuzmich, and T. A. B. Kennedy, “Theory of dark-state polariton collapses and revivals,” Phys. Rev. A 73, 021803 (2006).

[14] D. N. Matsukevich, T. Chaneliere, S. D. Jenkins, S.-Y. Lan, T. A. B. Kennedy, and A. Kuzmich, “Observation of Dark State Polariton Collapses and Revivals,” Phys. Rev. Lett. 96, 033601 (2006).

[15] L. Karpa, F. Vewinger, and M. Weitz, “Resonance Beating of Light Stored Using Atomic Spinor Polaritons,” Phys. Rev. Lett. 101, 170406 (2008).

[16 Hung-Ju Ho, Setup and Optimization of Dark Spontaneous-force Optical Trap,
Master Thesis ,NCKU (2011)

[17] Cheng-Wei Chien , Electromagnetically Induced Transparency in Dark Spontaneous-force Optical Trap, Master Thesis ,NCKU (2011)

[18] S. E. Harris, J. E. Field, and A. Imamoğlu, Phys. Rev. Lett. 64, 1107 (1990)