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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Bragg supermirror with polarization-dependent amplification of reflected light
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Bragg supermirror with polarization-dependent amplification of reflected light

机译：Bragg SuperMirror具有反射光的极化依赖性放大

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摘要

Reflection and transmission of light by a periodic multilayer, with a unit cell consisting of two different columnar thin films (CTFs), was numerically investigated. The nanocolumns of the CTFs were taken to be made from dissipative materials with the intercolumnar void regions filled with an active material. A combination of inverse and forward homogenization formalisms was employed to estimate the constitutive parameters of the two CTFs. The periodic multilayer exhibits the Bragg phenomenon in two generally distinct polarization-dependent spectral regimes for incident linearly polarized light. The presence of both dissipative and active materials allows the high reflectance to generally exceed unity for incident light of one linear polarization state but not for incident light of the other polarization state, in their respective Bragg regimes, but transmittances are low in both Bragg regimes. Thus, the chosen periodic multilayer is at best a good Bragg mirror for one linear polarization state, but it is a Bragg supermirror for the other linear polarization state.
机译：通过周期性多层的光反射和透射，用由两个不同的柱状薄膜（CTF）组成的单元电池进行了数值研究。 CTF的纳米柱用耗散材料制成，填充有活性材料的互补材料。使用逆和前进均质形式的组合来估计两种CTFS的组成型参数。周期性多层在两种通常不同的极化偏振型光谱方面具有用于入射的线性偏振光的布拉格现象。耗散和活性材料的存在允许高反射率通常超过一个线性偏振状态的入射光，但不用于其各自的布拉格制度，但在布拉格制度中，透射率低于另一极化状态。因此，所选择的周期性多层是用于一种线性偏振状态的最佳布拉格镜，但是它是用于另一线性偏振态的布拉格超级模。

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