Design and computation on high transmission metasurface for subwavelength focusing of terahertz waves

Renshuai Huang; Xuemei Zhang; Qinglong Meng; Jing Shang; Yan Zhang

doi:10.1117/12.3012204

21 December 2023 Design and computation on high transmission metasurface for subwavelength focusing of terahertz waves

Renshuai Huang, Xuemei Zhang, Qinglong Meng, Jing Shang, Yan Zhang

Proceedings Volume 12970, Fourth International Conference on Signal Processing and Computer Science (SPCS 2023); 1297031 (2023) https://doi.org/10.1117/12.3012204
Event: Fourth International Conference on Signal Processing and Computer Science (SPCS 2023), 2023, Guilin, China

Abstract

In this paper, a high transmission metasurface for subwavelength focusing of terahertz waves was proposed. A full 2π phase coverage with high transmission at target frequency was designed by varying the lengths of the cross resonators. The high transmission characteristics of the resonators were analyzed and the performance of the focusing was also discussed. The results show that the maximum transmission of the resonators reaches 0.92 and the terahertz wave can be focused with at the focusing point of a full width at half-maximum of 143 μm, which agrees well with the full width at half-maximum of 139 μm obtained by Huygens' principle. This device with the characteristics of flexible, thin and easy-integration exhibits the potential applications in THz imaging and communications, and also can be extended in the design of other planar THz components easily.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Renshuai Huang, Xuemei Zhang, Qinglong Meng, Jing Shang, and Yan Zhang "Design and computation on high transmission metasurface for subwavelength focusing of terahertz waves", Proc. SPIE 12970, Fourth International Conference on Signal Processing and Computer Science (SPCS 2023), 1297031 (21 December 2023); https://doi.org/10.1117/12.3012204

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