Field enhancement of tapered focuser with spoof surface plasmon polaritons

Peng Li; Ming Huang; Jingjing Yang; Rusheng Xie; Baojing Hu

doi:10.1117/12.2626174

13 December 2021 Field enhancement of tapered focuser with spoof surface plasmon polaritons

Peng Li, Ming Huang, Jingjing Yang, Rusheng Xie, Baojing Hu

Proceedings Volume 12074, 10th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Novel Optoelectronic Functional Materials and Devices; 1207404 (2021) https://doi.org/10.1117/12.2626174
Event: Tenth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2021), 2021, Chengdu, China

Abstract

Focuser concentrates the energy in a region through the lens, which can enhance the interaction between the field and the matter. It has important application value in engineering. With the tapered structure of the spoof SPPs transmission line, the electromagnetic wave in the gap between adjacent structures is transformed into a planar waveguide mode. These electromagnetic waves are confined in the gradually decreasing gap, resulting in a large amount of energy accumulation at the tip of the taper to form a field focusing effect. In this paper, a type of spoof SPPs focuser is designed, a focusing method of SPP wave is established through a conical transmission line on the surface at microwave band, and the application range of its focusing effect is explored.

Citation Download Citation

Peng Li, Ming Huang, Jingjing Yang, Rusheng Xie, and Baojing Hu "Field enhancement of tapered focuser with spoof surface plasmon polaritons", Proc. SPIE 12074, 10th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Novel Optoelectronic Functional Materials and Devices, 1207404 (13 December 2021); https://doi.org/10.1117/12.2626174

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