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在柱对称条件下，利用耦合的布洛赫－麦克斯韦（Ｂｌｏｃｈ－Ｍａｘｗｅｌ）方程，研究了激光脉冲在原子蒸气介质中的共振传播。考察了脉冲在时空中的演化。数值计算结果表明激光脉冲在传播中，由于自感应透明与光波的衍射效应，表现出复杂的相干现象。
Under the condition of column symmetry, the resonance propagation of the laser pulse in the atomic vapor medium is studied by the coupled Bloch-Maxwell equation. The evolution of the pulse in space-time is investigated. The numerical results show that the laser pulse propagates in a complex coherent state due to the self-induced transparency and the diffraction effect of light waves.