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首页> 外文期刊>AIP Advances >Double E-shaped toroidal metasurface with high Q-factor Fano resonance and electromagnetically induced transparency
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Double E-shaped toroidal metasurface with high Q-factor Fano resonance and electromagnetically induced transparency

机译:双E形环形元表面,具有高Q系子扇形共振和电磁诱导的透明度

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A double E-shaped toroidal dipole metasurface is designed with the high Q-factor Fano and classical electromagnetically induced transparency (EIT) phenomena in the microwave frequency range. With the introduction of an asymmetric structure, the sharp Fano resonance can be excited and acquired a quite high Q-factor of 134 at a lower frequency of 4.58?GHz. It can be numerically and experimentally demonstrated that the singularity Fano response of designed construction is caused by the intensive toroidal dipole. In addition, due to destructive interference between the intensive toroidal dipole and electric dipole, the transmission peak of EIT can reach 0.95 with a Q-factor of 50 at 10.18?GHz. By calculating and comparing the radiated power of multipoles, the enhanced toroidal dipole response can be further verified. The designed planar toroidal dipole metamaterial with simple construction may have many possible applications in toroidal moment generators, sensing, and slow-light devices.
机译:双E形环形偶极性偏离表面采用微波频率范围内的高Q因子Fano和经典电磁诱导的透明度(EIT)现象。 随着不对称结构的引入,可以激发锐利的Fano共振,并以4.58的较低频率获得相当高的Q系数134。 它可以在数字上和实验证明设计结构的奇异性Fano响应是由强化环形偶极子引起的。 此外,由于强化环形偶极和电偶极子之间的破坏性干扰,EIT的传输峰可以达到0.95,Q系数为50,10.18°GHz。 通过计算和比较多能的辐射功率,可以进一步验证增强的环形偶极响应。 具有简单施工的设计的平面环形偶极性超材料可能在环形时刻发生器,传感和慢型器件中具有许多可能的应用。

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