论文标题
原子系统中折射率的限制和可能性
Limits and possibilities of refractive index in atomic systems
论文作者
论文摘要
折射率的操纵最近引起了人们的兴趣。我们考虑加强相干原子系统中线性索引的绝对值极限的参数和可能性。首先要回顾如何在固定原子密度下实现两级过渡（没有添加的连贯效应），并不能实际提高指数的显着增强，我们讨论了使用波混合的一种可能的方法。这证实，除了中等的光学深度/密度外，唯一可以有效更改可达到指数值的参数是所涉及过渡的频率。
Manipulation of the refractive index has been of growing interest lately. We consider parameters and possibilities of enhancing the absolute-value limit of the linear index in coherent atomic systems. Starting with a review of how two-level transitions - without and with added coherence effects - do not realistically allow for a significantly enhanced index at fixed atomic density, we discuss a possible way around this using wave mixing. This confirms that the only parameters, besides the medium optical depth/density, that can effectively change the value of the attainable index are the frequencies of the involved transitions.
