Terahertz wave modulation properties of graphene with different excitation laser power

The terahertz wave modulation properties of graphene were investigated using an external 975 nm continuous wave laser with different power. Upon excitation laser, the transmission and modulation depth was measured using terahertz time-domain spectroscopy. The experimental results showed that the mod...

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Detalles Bibliográficos
Autores principales: Chen, Shaohang, Yang, Ruizhao, Zhou, Yanni, Qin, Binyi, Li, Yun, Zheng, Jincun, Liang, Yizhi, Li, Tinghui, Liu, Jianming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9512082/
https://www.ncbi.nlm.nih.gov/pubmed/36276014
http://dx.doi.org/10.1039/d2ra04133b
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author Chen, Shaohang
Yang, Ruizhao
Zhou, Yanni
Qin, Binyi
Li, Yun
Zheng, Jincun
Liang, Yizhi
Li, Tinghui
Liu, Jianming
author_facet Chen, Shaohang
Yang, Ruizhao
Zhou, Yanni
Qin, Binyi
Li, Yun
Zheng, Jincun
Liang, Yizhi
Li, Tinghui
Liu, Jianming
author_sort Chen, Shaohang
collection PubMed
description The terahertz wave modulation properties of graphene were investigated using an external 975 nm continuous wave laser with different power. Upon excitation laser, the transmission and modulation depth was measured using terahertz time-domain spectroscopy. The experimental results showed that the modulation depth of monolayer graphene and 3-layer graphene was 16% and 32% under the 1495 mW excitation power. Further, we analyzed the graphene modulation mechanism based on the Drude model and the thin-film approximation. Both theoretical analysis and calculation results showed that the terahertz wave could be modulated using graphene with different excitation laser power.
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spelling pubmed-95120822022-10-21 Terahertz wave modulation properties of graphene with different excitation laser power Chen, Shaohang Yang, Ruizhao Zhou, Yanni Qin, Binyi Li, Yun Zheng, Jincun Liang, Yizhi Li, Tinghui Liu, Jianming RSC Adv Chemistry The terahertz wave modulation properties of graphene were investigated using an external 975 nm continuous wave laser with different power. Upon excitation laser, the transmission and modulation depth was measured using terahertz time-domain spectroscopy. The experimental results showed that the modulation depth of monolayer graphene and 3-layer graphene was 16% and 32% under the 1495 mW excitation power. Further, we analyzed the graphene modulation mechanism based on the Drude model and the thin-film approximation. Both theoretical analysis and calculation results showed that the terahertz wave could be modulated using graphene with different excitation laser power. The Royal Society of Chemistry 2022-09-26 /pmc/articles/PMC9512082/ /pubmed/36276014 http://dx.doi.org/10.1039/d2ra04133b Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Chen, Shaohang
Yang, Ruizhao
Zhou, Yanni
Qin, Binyi
Li, Yun
Zheng, Jincun
Liang, Yizhi
Li, Tinghui
Liu, Jianming
Terahertz wave modulation properties of graphene with different excitation laser power
title Terahertz wave modulation properties of graphene with different excitation laser power
title_full Terahertz wave modulation properties of graphene with different excitation laser power
title_fullStr Terahertz wave modulation properties of graphene with different excitation laser power
title_full_unstemmed Terahertz wave modulation properties of graphene with different excitation laser power
title_short Terahertz wave modulation properties of graphene with different excitation laser power
title_sort terahertz wave modulation properties of graphene with different excitation laser power
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9512082/
https://www.ncbi.nlm.nih.gov/pubmed/36276014
http://dx.doi.org/10.1039/d2ra04133b
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