Broadband THz Modulators Based on Multilayer Graphene on PVC

Date

2016-09-30

Author

KAYA, Emine
Kakenov, Nurbek
Kocabas, Coskun
Altan, Hakan
Esentürk, Okan

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In this study we present the direct terahertz timedomain 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.

Subject Keywords

Terahertz modulators

URI

https://hdl.handle.net/11511/38646

Collections

Department of Physics, Conference / Seminar