Design strategy to improve the transmission efficiency in visible spectrum

Huiyu Li; Lin Zhao; Sen Liu; Ying Cao; Guoqing Hu; Guangwei Chen; Zhehai Zhou

doi:10.1117/12.3035798

20 November 2024 Design strategy to improve the transmission efficiency in visible spectrum

Huiyu Li, Lin Zhao, Sen Liu, Ying Cao, Guoqing Hu, Guangwei Chen, Zhehai Zhou

Author Affiliations +

Proceedings Volume 13244, Nano-optoelectronics and Micro/Nano-photonics X; 132440G (2024) https://doi.org/10.1117/12.3035798
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Abstract

Metasurfaces are opening up promising flexibilities to reshape the wavefront of electromagnetic waves, and a notable optical phenomenon is observed with the tailored surface plasmon. However, meta-devices with metallic material face challenges of low transmission efficiency, especially in the visible spectrum. In this work, a multilayer metamaterial strategy is proposed to improve the transmission. By adding dielectric material as space layer is inserted along the propagation direction, vertical cavities are formed to modulate the transmission and reflection. The multilayer structure is numerically studied to discuss the transmission efficiency. A maximum transmission efficiency of 90% is achieved by adding a spin on glass material to the silver layer at the visible spectrum. The transmission efficiency with and without space layer is discussed as a control. Significantly, the surface plasma and the phase could still be modulated by adjusting the geometrical parameters of the multilayer metamaterial for diversified functionalities.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Huiyu Li, Lin Zhao, Sen Liu, Ying Cao, Guoqing Hu, Guangwei Chen, and Zhehai Zhou "Design strategy to improve the transmission efficiency in visible spectrum", Proc. SPIE 13244, Nano-optoelectronics and Micro/Nano-photonics X, 132440G (20 November 2024); https://doi.org/10.1117/12.3035798

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KEYWORDS

Dielectrics

Metals

Silver

Transmittance

Design

Visible radiation

Film thickness

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