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Abstract
The phenomenon of non-reciprocity in the spin Hall effect of light (SHEL) is studied in this paper. The proposed structure is composed of a glass layer, multilayer magnetized plasma layers, and an air layer. The multilayer magnetized plasma layers are arranged in accordance with the fifth Fibonacci sequence. The simulated results demonstrate that ${\omega _{{pa}}}$, ${\omega _{{pb}}}$ (plasma frequencies of magnetized plasma for layers A and B), $ f $ (the frequency of the incident light), and the number of the magnetized plasma layers affect the behavior of non-reciprocity in the SHEL. The computed results also show that with the enhancement of ${\omega _{{pa}}}$, ${\omega _{{pb}}}$, and $ f $, the phenomenon of non-reciprocity will be more obvious, evident by the distinct difference between the forward and backward incidence. However, the increase in the number of magnetized plasma layers has the effect of limiting the advantages of non-reciprocity in the SHEL. Those results demonstrate that the difference of ${\delta ^H}$ (horizontal displacements) between the forward and backward incidence in the third sequence is 6 times greater than that in the fourth sequence, and the difference of ${\delta ^H}$ in the fourth sequence is bigger than that in the fifth sequence. Through these findings, the non-reciprocity in the SHEL will be better understood and they will be of help in the development of optical isolators and non-reciprocal sensors.
© 2021 Optical Society of America
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