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Effective factors in improving lasing performance in an atom-cavity system in the steady state regime

机译：稳态下提高原子腔系统激光性能的有效因素

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摘要

The behavior of a three-level atom in a V configuration with a multi-photon transition enclosed in a single-mode Fabry-Perot optical cavity is examined theoretically. To solve the describing equations of the atom-cavity system, a matrix continued fractions method has been used in the steady state. On the one hand, the effects of the number of transitions have been discussed over quantities involving population inversion, mean photon number and second-order correlation function. On the other hand, the changes of the coupling constant have been investigated on observables consisting atom-cavity correlation, the mean photon number and the second-order coherence function for different transitions. The influences of the number of transitions and the variations of the coupling constant are discussed separately on the improving lasing action in both cases. Finally, the transformation circumstances of the given three-level atom to an effective two-level one have been analyzed for various transitions. The results of the three-level atomic simulations appropriately confirm the correctness of several special conditions applied in the two-level atomic pattern.
机译：理论上研究了V型结构中三能级原子的行为，该结构具有封闭在单模Fabry-Perot光腔中的多光子跃迁。为了求解原子腔系统的描述方程，在稳态下使用了矩阵连续分数法。一方面，已经讨论了跃迁数的影响对涉及种群反转，平均光子数和二阶相关函数的数量的影响。另一方面，在包括原子-空穴相关性，平均光子数和不同跃迁的二阶相干函数在内的可观察物上研究了耦合常数的变化。在这两种情况下，分别讨论了跃迁数和耦合常数变化对提高激光作用的影响。最后，分析了给定的三能级原子到有效的两能级原子的转变环境。三级原子模拟的结果适当地证实了在二级原子模式中应用的几个特殊条件的正确性。

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