[1] Li Fuli, Gao Shaoyan, Zhu Shiyao. Enhancement of steady-state squeezing in the resonance fluorescence of a coherently driven four-level atom of A configuration via quantum interference [J]. Phys. Rev. A, 2003, 67:063818.

[3] Mandel L. Squeezed states and sub-Poissonian photon statistics [J]. Phys. Rev. Lett., 1982, 49: 136-139.

[4] Zhou P, Swain S. Phase-dependent spectra in a driven two-level atom [J]. Phys. Rev. Lett., 1999, 82: 2500.

[5] Lu Z H, Bali S, Thomas J E. Observation of squeezing in the phase-dependent fluorescence spectra of two-level atoms [J]. Phys. Rev. Lett., 1998, 81: 3635.

[6] Chen C, Rifani M, Cha J, et al. Field-correlation effects in two-photon absorption from randomly amplitudemodulated laser fields [J]. Phys. Rev. A, 1994, 49: 461.

[7] Zhou P, Swain S. Resonance fluorescence and absorption spectra from a two-level atom driven by coherent and stochastic fields [J]. Phys. Rev. A, 1998, 58: 4705.

[8] Zhou P, Swain S, Ficek Z. Resonance fluorescence spectrum of a two-level atom driven by a bichromatic field in a squeezed vacuum [J]. Phys. Rev. A, 1997, 55: 2340.

[9] Zhou P, Swain S. Dynamics of a driven two-level atom coupled to a frequency-tunable cavity [J]. Phys. Rev. A,1998, 58: 1515.

[10] Ficek Z, Swain S. Squeezing in anomalous resonance fluorescence [J]. J. Opt. Soc. Am. B, 1997, 14: 258.