Simulation results of transmission characteristics of double-walled carbon nanotube film in terahertz band

Sen Liu; Huiyu Li; Lin Zhao; Yang Cao

doi:10.1117/12.3039010

20 November 2024 Simulation results of transmission characteristics of double-walled carbon nanotube film in terahertz band

Sen Liu, Huiyu Li, Lin Zhao, Yang Cao

Author Affiliations +

Proceedings Volume 13244, Nano-optoelectronics and Micro/Nano-photonics X; 132440F (2024) https://doi.org/10.1117/12.3039010
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Abstract

In this paper, the transmission properties of the double-walled carbon nanotube (DWCNT) films in terahertz spectrum are simulated and analyzed using the finite element method. Carbon nanotubes (CNTs) have excellent electromagnetic properties, oxidation resistance and flexibility, so it has become a material that has attracted much attention to replacing metal wire grids. The transmission of the transverse magnetic (TM) gives the power transmission of the polarizer for the component parallel to the grating vector and the transmission of the transverse electric (TE) for the perpendicular component. Our simulation results show that the transmission of the TM mode and the TE mode could be modulated by adjusting the diameter and spacing of the DWCNTs. In the range of 0.3-2.5THz, the transmission of the TM can be modulated from 90.7% to 99.3%, and TE can be modulated from 0.3% to 23%, which offers an alternative way of designing a polarizer with the desired degree of polarization. The simulation results provide numerical results in wide-band THz wave modulation with DWCNTs.

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

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Sen Liu, Huiyu Li, Lin Zhao, and Yang Cao "Simulation results of transmission characteristics of double-walled carbon nanotube film in terahertz band", Proc. SPIE 13244, Nano-optoelectronics and Micro/Nano-photonics X, 132440F (20 November 2024); https://doi.org/10.1117/12.3039010

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KEYWORDS

Signal intensity

Terahertz radiation

Optical transmission

Carbon nanotubes

Dielectrics

Electromagnetism

Film thickness

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