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本文以级联型三能级原子为对象,利用一阶关联函数的因式分解式可以定义场为光学相干的,运用数值求和的方法,将电场关联函数及电场负频正频的积作图比较,分别讨论了原子初始处于不同能级时的受激辐射的相干性质,并讨论了二模场与原子耦合系数不等这种更一般情况。 并指出,在本文所及的较小平均光子数的情况下,各种因素对受激辐射相干性质的影响皆可通过对初振荡半周期内形态的影响而体现出来。
In this paper, the cascaded three-level atom is taken as the object. The factorization of the first-order correlation function can be used to define the field as optical coherence. By using the method of numerical summation, the product of the electric field correlation function and the electric field negative frequency In this paper, we discuss the coherent properties of stimulated radiation when atoms are initially at different energy levels, and discuss the more general case where the coupling coefficient between two mode fields and atoms is not equal. It is also pointed out that the influence of various factors on the coherent properties of stimulated radiation can be shown by the influence on the morphology during the initial oscillation half-period under the condition of smaller average photon number.