基于极化不敏感超材料的类电磁诱导透明特性研究

doi:10.3976/j.issn.1002-4026.2021.01.004

Abstract

Abstract: In this study, an electromagnetically induced transparent metamaterial structure with four metal lines and a ring is proposed. It exhibits the characteristics of horizontal and vertical polarization insensitivity when the electromagnetic wave is perpendicular to its surface. The characteristics of the metamaterial transmission curve and its surface current distribution have been numerically calculated and simulated. Further, the phase propagation curve and group refractive index are calculated and analyzed. The maximum group refractive index can reach up to 380, indicating that the metamaterial can be used to fabricate slow optical devices. When this metamaterial is used to manufacture a refractive index sensor, the D_FOM value is approximately 20.13, indicating a higher sensitivity compared with those of the existing sensors. Results show that the metamaterial can be applied to manufacture slow optical devices and refractive index sensors.

Key words: analog of electromagnetically induced transparency, metamaterial, polarization-insensitive, refractive index sensor, group refractive index

CLC Number:

O441

LI Rong, ZHENG Wen. Characteristics of the analog of electromagnetically induced transparency in case of a polarization-insensitive metamaterial[J].Shandong Science, 2021, 34(1): 28-34.

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Characteristics of the analog of electromagnetically induced transparency in case of a polarization-insensitive metamaterial

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