Terahertz characterization of multi-walled carbon nanotube films

Ziran Wu; Lu Wang; Yitian Peng; Abram Young; Supapan Seraphin; Hao Xin

doi:10.1063/1.2919784

Terahertz characterization of multi-walled carbon nanotube films

Ziran Wu, Lu Wang, Yitian Peng, Abram Young, Supapan Seraphin, Hao Xin

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33 Scopus citations

Abstract

Multi-walled carbon nanotube films are characterized using terahertz time-domain spectroscopy. Both transmission and reflection experiments are performed in order to measure both the complex refractive index and the wave impedance. This method allows simultaneous extraction of both the permittivity (ε= ε′ -iε ^″) and permeability (μ= μ′ -i μ″) without any assumptions. Experimental results are obtained from 50 to 370 GHz and compared well with the microwave data (8-50 GHz) of the same sample measured using a vector network analyzer. The measured complex permittivity can be fitted with a Drude-Lorentz model in the 8-370 GHz frequency range.

Original language	English (US)
Article number	094324
Journal	Journal of Applied Physics
Volume	103
Issue number	9
DOIs	https://doi.org/10.1063/1.2919784
State	Published - 2008

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.2919784

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title = "Terahertz characterization of multi-walled carbon nanotube films",

abstract = "Multi-walled carbon nanotube films are characterized using terahertz time-domain spectroscopy. Both transmission and reflection experiments are performed in order to measure both the complex refractive index and the wave impedance. This method allows simultaneous extraction of both the permittivity (ε= ε′ -iε ″) and permeability (μ= μ′ -i μ″) without any assumptions. Experimental results are obtained from 50 to 370 GHz and compared well with the microwave data (8-50 GHz) of the same sample measured using a vector network analyzer. The measured complex permittivity can be fitted with a Drude-Lorentz model in the 8-370 GHz frequency range.",

author = "Ziran Wu and Lu Wang and Yitian Peng and Abram Young and Supapan Seraphin and Hao Xin",

note = "Funding Information: The authors wish to acknowledge the multi-walled carbon nanotube film samples provided by Nano-laboratory Inc. This work is supported in part by U.S. Army Research Office Contract Nos. W911NF0610087 and W911NF06C0117.",

year = "2008",

doi = "10.1063/1.2919784",

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T1 - Terahertz characterization of multi-walled carbon nanotube films

AU - Wu, Ziran

AU - Wang, Lu

AU - Peng, Yitian

AU - Young, Abram

AU - Seraphin, Supapan

AU - Xin, Hao

N1 - Funding Information: The authors wish to acknowledge the multi-walled carbon nanotube film samples provided by Nano-laboratory Inc. This work is supported in part by U.S. Army Research Office Contract Nos. W911NF0610087 and W911NF06C0117.

PY - 2008

Y1 - 2008

N2 - Multi-walled carbon nanotube films are characterized using terahertz time-domain spectroscopy. Both transmission and reflection experiments are performed in order to measure both the complex refractive index and the wave impedance. This method allows simultaneous extraction of both the permittivity (ε= ε′ -iε ″) and permeability (μ= μ′ -i μ″) without any assumptions. Experimental results are obtained from 50 to 370 GHz and compared well with the microwave data (8-50 GHz) of the same sample measured using a vector network analyzer. The measured complex permittivity can be fitted with a Drude-Lorentz model in the 8-370 GHz frequency range.

AB - Multi-walled carbon nanotube films are characterized using terahertz time-domain spectroscopy. Both transmission and reflection experiments are performed in order to measure both the complex refractive index and the wave impedance. This method allows simultaneous extraction of both the permittivity (ε= ε′ -iε ″) and permeability (μ= μ′ -i μ″) without any assumptions. Experimental results are obtained from 50 to 370 GHz and compared well with the microwave data (8-50 GHz) of the same sample measured using a vector network analyzer. The measured complex permittivity can be fitted with a Drude-Lorentz model in the 8-370 GHz frequency range.

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Terahertz characterization of multi-walled carbon nanotube films

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