Finally, the atomic coherent population trapping is studied in a multilevel laser-induced continuum structure system including cascade two-photon processes by means of quasi-classical theory. The condition leading to the atomic coherent population trapping and the dark state are given explicitly. The effects of atomic initial state and the laser intensity on the populations distributed in the atomic bound statesare discussed. Influence of atomic coherence on Rydberg-atom stabilization is revealed.
考察了中间态为准连续态的双通道光致离化系统中激光的相对相位对稳态光电子能谱的影响，发现如果发生相消干涉的离化通道的中间态属于同一组准连续态矢集，则发生相干俘获的条件及俘获率均与激光的相对相位无关；如果发生相消干涉的离化通道的中间态属于不同的准连续态矢集，则相干俘获现象只在两离化通道的相位差n＝0或。
The atomic coherent population trapping in the LICS system including cascade two-photon process is also discussed. The influence of the quasicontinuum between in the ground state and in the continuum is analyzed, and the result, coincident with the experimental result is obtained.
我们还考察了含级联双光子过程的LICS系统中原子粒子布居相干捕获的特性，分析了原子基态与连续态之间的准连续态的作用，得出了与以往实验可较好符合的结果。
Photon antibunching effects of q - deformed odd coherent light field interacting with a cascade three-level atom
q-奇相干场与级联型三能级原子相互作用中场的反聚束效应