[1] Hahn K H, Field J E, Harris S E. Observation of electromagnetically induced transparency in collisionally broadened lead vapor［J］. Phys Rev Lett, 1991, 67(22): 3062-3065.

[2] Zhang Lei, Zhang Xiangyang. Study on hgh-precision atom localization via population in quasi-Λ-type four-level atomic system［J］. Laser & Optoelectronics Progress, 2015, 52(11): 112702.

[3] Fry E S, Li X, Nikonov D, et al. Atomic coherence effects within the sodium D1 line: Lasing without inversion via population trapping［J］. Phys Rev Lett, 1993, 70(21): 3235-3238.

[4] Vanier J, Levine M W, Janssen D, et al. Contrast and linewidth of the coherent population trapping transmission hyperfine resonance line in 87Rb: Effect of optical pumping［J］. Phys Rev A, 2003, 67(6): 065801.

[5] Harris S E, Field J E, Imamoglu A. Nonlinear optical processes using electromagnetically induced transparency［J］. Phys Rev Lett, 1990, 64(10): 1107-1110.

[6] Imamolu A, Field J E, Harris S E. Lasers without inversion: A closed lifetime broadened system［J］. Phys Rev Lett, 1991, 66(9): 1154-1156.

[7] Hau L V, Harris S E, Dutton Z, et al. Light speed reduction to 17 metres per second in an ultracold atomic gas［J］. Nature, 1999, 397(6720): 594-598.

[8] Ham B S, Shahriar M S, Kim M K, et al. Frequency-selective time-domain optical data storage by electromagnetically induced transparency in a rare-earth-doped solid［J］. Opt Lett, 1997, 22(24): 1849-1851.

[9] Schmidt H, Campman K L, Gossard A C, et al. Tunneling induced transparency: Fano interference in intersubband transitions［J］. Appl Phys Lett, 1997, 70(25): 3455.

[10] Imamogˇlu A, Boller K J, Harris S E. Observation of electromagnetically induced transparency［J］. Phys Rev Lett, 1991, 66(20): 2593-2596.

[11] Kang H, Hernandez G, Zhang J, et al. Phase-controlled light switching at low light levels［J］. Phys Rev A, 2006, 73(1): 011802.

[12] Abi-salloum T Y. Electromagnetically induced transparency and Autler-Townes splitting: Two similar but distinct phenomena in two categories of three-level atomic systems［J］. Phys Rev A, 2010, 81(5): 053836.

[13] Wang Yebing, Cong Dongliang, Xu Peng, et al. Observation of atomic coherence in intercombination transition line of strontium atom［J］. Acta Optica Sinica, 2013, 33(4): 0427001.

[14] Scully M O, Zubairy M S, Walmsley I A. Quantum optics［M］. Cambridge: Cambridge University Press, 1999: 222.

[15] Wang Yiqiu. Laser cooling and trapping of atoms［M］. Beijing: Peking University Press, 2007: 33-34.

[16] Tian Xiao. Experimental study on loading 88Sr into an optical lattice and probing its clock transition［D］. Xi’an: National Time Service Center, Chinese Academy of Sciences, 2015: 29.

[17] Drever R W P, Hall J L, Kowalski F V, et al. Laser phase and frequency stabilization using an optical resonator［J］. Appl Phys B, 1983, 31(2): 97-105.

[18] Li Y, Lin Y G, Zhao Y, et al. Stable narrow linewidth 689 nm diode laser for the second stage cooling and trapping of strontium atoms［J］. Chin Phys Lett, 2010, 27(7): 074208.

[19] Liu Hui. Research of laser techniques and spectroscopy detection for strontium optical lattice clock［D］. Xi’an: National Time Service Center, Chinese Academy of Sciences, 2015: 16.

[20] Lang R. Injection locking properties of a semiconductor laser［J］. IEEE J Quantum Electron, 1982, 18(6): 976-983.

[21] Li Lin, Liu Peng, Ji Jingwei, et al. Probe laser power stabilization for the integrated sphere cold atomic clock［J］. Acta Optica Sinica, 36(8): 0814004.