Broadband THz modulators based on multilayer graphene on PVC

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Broadband THz modulators based on multilayer graphene on PVC.pdf (150.57 KB)

Date

2016

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Source Title

Proceedings of the 41st International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2016

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2162-2027

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IEEE

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English

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Conference Paper

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Abstract

In this study we present the direct terahertz time-domain spectroscopic measurement of CVD-grown multilayer graphene (MLG) on PVC substrate with an electrically tunable Fermi level. In a configuration consisting MLG and injected organic dopant, the transmitted intensity loss of terahertz radiation was observed with an applied voltage between 0 and 3.5 V. We showed that MLG on PVC devices provided approximately 100 % modulation between 0.2 and 1.5 THz at preferentially low operation voltage of ca. 3V. The observed modulation bandwidth in terahertz frequencies appears to be instrument limited.

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Keywords

Graphene , Modulation , Modulators , Multilayers , Electrically tunable , Modulation bandwidth , Multilayer graphene , Operation voltage , Spectroscopic measurements , Terahertz frequencies , Terahertz radiation , Transmitted intensities , Terahertz waves

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http://hdl.handle.net/11693/37728

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http://dx.doi.org/10.1109/IRMMW-THz.2016.7758670

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Department of Physics