Active modulation of multiple metamaterial induced transparences in terahertz region

Huiwen Shi; Longyu Shi; Xuteng Zhang; Pujing Zhang; Jinyu Chen; Mengyuan Wang; Huijuan Sun; Qingli Zhou; Cunlin Zhang

doi:10.1117/12.2683140

31 May 2023 Active modulation of multiple metamaterial induced transparences in terahertz region

Huiwen Shi, Longyu Shi, Xuteng Zhang, Pujing Zhang, Jinyu Chen, Mengyuan Wang, Huijuan Sun, Qingli Zhou, Cunlin Zhang

Proceedings Volume 12711, Third Optics Frontier Conference (OFS 2023); 1271105 (2023) https://doi.org/10.1117/12.2683140
Event: Third Optics Frontier Conference (OFS 2023), 2023, Fuyang, China

Abstract

Metamaterial induced transparency (MIT) has great potential in photonic device applications. Here, we design a metastructure with MIT effect generated by destructive interference of bright-dark-dark three modes. Therein, the cross resonator formed by the combination of the cut-wire resonator and the long vertical metal bar (LVMB) act as the bright mode, and two pairs of split ring resonators of different lengths are distributed around the cross resonator as two dark modes, realizing significant multi-band MIT effect. Furthermore, the embedded photosensitive Si island in the broken LVMB can be used to tune the effective length by changing the conductivity, thereby actively controlling the conversion from multi-band behaviors into triple MITs. Our results could achieve the dynamic multi-band switching, which has broad application prospects for optical information processing and communication.

Citation Download Citation

Huiwen Shi, Longyu Shi, Xuteng Zhang, Pujing Zhang, Jinyu Chen, Mengyuan Wang, Huijuan Sun, Qingli Zhou, and Cunlin Zhang "Active modulation of multiple metamaterial induced transparences in terahertz region", Proc. SPIE 12711, Third Optics Frontier Conference (OFS 2023), 1271105 (31 May 2023); https://doi.org/10.1117/12.2683140

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KEYWORDS

Terahertz radiation

Silicon

Electrical conductivity

Resonators

Transmittance

Terahertz metamaterials

Electric fields

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