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研究一维周期排列共振放大介质的小信号增益特性.研究结果表明小信号增益随着作用长度的增加表现出异常的放大特性.在满足严格布拉格共振条件下,介质折射率分布形成的带隙和增益效应之间的相互竞争决定了透射光场的变化.进一步讨论了增益大小与激子参数和共振原子之间的依赖关系.
The small-signal gain characteristics of a one-dimensional periodic array of resonant amplifiers are studied.The results show that the small-signal gain exhibits an abnormal amplification characteristic with the increase of the effective length.When the Bragg resonance condition is satisfied, the bandgap formed by the medium refractive index distribution and The competition between gain effects determines the variation of the transmitted light field, and further discusses the dependence of the gain on the exciton parameters and resonance atoms.