Transmission characteristics of linearly polarized light in reflection-type one-dimensional magnetophotonic crystals

doi:10.1007/s12200-019-0870-0

Front. Optoelectron.

2019, Vol. 12

Issue (4) : 365-371 https://doi.org/10.1007/s12200-019-0870-0

RESEARCH ARTICLE

Transmission characteristics of linearly polarized light in reflection-type one-dimensional magnetophotonic crystals

Chunxiang ZENG¹, Zeqing WANG¹, Yingmao XIE²(

)

¹. School of Physics and Electronic Information, Gannan Normal University, Ganzhou 341000, China
². Institute of Optoelectronic Materials and Technology, Gannan Normal University, Ganzhou 341000, China

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Abstract

The propagation properties of linearly polarized light in reflection-type one-dimensional magnetophotonic crystals are studied by using the 4×4 transmission matrix method. The structure models of reflection-type one-dimensional magnetophotonic crystals are designed, the magnetic field direction control characteristics of reflection spectrum and Kerr rotation angle are discussed, and the effect of applied magnetic field direction and strength on reflection spectrum and Kerr rotation angle are analyzed. The results show that the non-diagonal elements in the dielectric constant of magneto optical materials change when the angle ϕ between applied magnetic field and optical path changes, the reflectivity and Kerr rotation angle decrease when the angle ϕ increases; when the applied magnetic field strength changes, the reflectivity and Kerr rotation angle increase when the applied magnetic field strength increases; by adjusting the angle ϕ and strength of the applied magnetic field, the rotation angle of Kerr can be adjusted to 45°, and a more flat reflection spectrum can be obtained by designing the appropriate structure.

Keywords magnetophotonic crystal 4×4 transfer matrix method magneto-optical effect Kerr rotation angle

Corresponding Author(s): Yingmao XIE

Online First Date: 05 June 2019 Issue Date: 30 December 2019

Cite this article:

Chunxiang ZENG,Zeqing WANG,Yingmao XIE. Transmission characteristics of linearly polarized light in reflection-type one-dimensional magnetophotonic crystals[J]. Front. Optoelectron., 2019, 12(4): 365-371.

URL:

https://academic.hep.com.cn/foe/EN/10.1007/s12200-019-0870-0
https://academic.hep.com.cn/foe/EN/Y2019/V12/I4/365

Fig.1 Magneto optical material in an external magnetic field

Fig.2 Variation of reflectivity with the wavelength l and the angle j for the structure S1

Fig.3 Reflectivity varies with angle j for the structure S1 when l =1550 nm

Fig.4 Variation of Kerr rotation angle with the wavelength l and the angle j for the structure S1

Fig.5 Variation of Kerr rotation angle with angle j for the structure S1 when l =1550 nm

Fig.6 Variation of reflectivity with the wavelength l and the e₂ for the structure S1

Fig.7 Reflectivity varies with e₂ for the structure S1 when l =1550 nm

Fig.8 Variation of Kerr rotation angle with the wavelength l and the e₂ for the structure S1

Fig.9 Variation of Kerr rotation angle with e₂ for the structure S1 when l =1550 nm

Fig.10 Variation of reflectivity with the wavelength l and the angle j for the structure S2

Fig.11 Reflectivity varies with angle j for the structure S2 when l =1550 nm

Fig.12 Variation of Kerr rotation angle with the wavelength l and the angle j for the structure S2

Fig.13 Variation of Kerr rotation angle with angle j for the structure S2 when l =1550 nm

Fig.14 Variation of reflectivity with the wavelength l and the e₂ for the structure S2

Fig.15 Reflectivity varies with e₂ for the structure S2 when l =1550 nm

Fig.16 Variation of Kerr rotation angle with the wavelength l and the e₂ for the structure S2

Fig.17 Variation of Kerr rotation angle with e₂ for the structure S2 when l =1550 nm

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