Optical isolator based on nonreciprocal coupling of two Tamm plasmon polaritons |
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Authors: | Yun-Tuan Fang Jing Zheng |
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Affiliation: | 1. School of Computer Science and Telecommunication Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of Chinafang_yt1965@sina.com;3. School of Computer Science and Telecommunication Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China |
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Abstract: | In this paper, we have studied the one-dimensional photonic crystal (PC) including a magneto-optical metal defect using the developed transfer matrix method for magnetic materials. Around the two interfaces between metal and one-dimensional PC, two nonsymmetric Tamm magneto-plasmon polaritons may be excited and coupled. The coupled states take on a clear nonreciprocal behavior and result in nonreciprocal transmission. The results are demonstrated through electromagnetic field distribution simulations based on finite element software. It provides a useful reference to realize optical isolator design. |
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Keywords: | magneto-optical metal Tamm magneto-plasmon polaritons photonic crystal nonreciprocity |
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