Opt Lett. 2018 Nov 1;43(21):5295-5298. doi: 10.1364/OL.43.005295.
The Macaluso-Corbino effect describes the optical rotation of light in the spectral proximity to an atomic resonance. One use of this effect is narrowband optical filtering. So-called Faraday filters utilize the difference of the two components of the refractive indices, which are split by the Zeeman effect in a longitudinal magnetic field. This allows for a net rotation of a linearly polarized input beam within the medium. Placing it between crossed polarizers therefore only allows light near resonance to pass. Since any resonant spectrum implies anomalous dispersion on resonance, these filters are often characterized as being based on this anomalous dispersion. This Letter analyses to what extent the anomalous dispersion and the anomalous rotation are relevant for Faraday filters. Considering the sign of the anomalous rotation introduces a strict criterion if the filter is operated in the line center or in the spectral wing of an atomic resonance.
马卡罗索-科尔比诺效应描述了光在接近原子共振的光谱范围内的旋光。该效应的一个用途是窄带光滤波。所谓的法拉第滤波器利用折射率的两个分量的差异，这两个分量在纵向磁场中被塞曼效应分裂。这使得线性偏振输入光束在介质中产生净旋转。因此，将其放置在交叉偏振器之间仅允许共振附近的光通过。由于任何共振光谱在共振时都意味着反常色散，因此这些滤波器通常被描述为基于这种反常色散。本信分析了反常色散和反常旋转对法拉第滤波器的重要性。如果滤波器在线性中心或原子共振的光谱翼运行，考虑反常旋转的符号会引入一个严格的标准。
