中国物理B ›› 2006, Vol. 15 ›› Issue (4): 721-728.doi: 10.1088/1009-1963/15/4/012
李家华1, 刘继兵1, 谢小涛1, 陈爱喜2
Li Jia-Hua (李家华)a, Chen Ai-Xi (陈爱喜)ab, Liu Ji-Bing (刘继兵)a, Xie Xiao-Tao (谢小涛)a
摘要: This paper theoretically studies the effects of the vacuum-induced coherence on one- and two-photon absorption in a four-level atomic medium. It finds that the one- and two-photon absorption and amplification properties are quite sensitive to the vacuum-induced coherence. It is also shown that the one- and two-photon absorption spectra can be dramatically affected by modulating the relative phase of the applied fields. With the proper choice of the relative phase, the amplification without inversion for the probe field can be realized.
中图分类号: (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)