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Graphene-based terahertz modulations enhanced with hollow metallic structures
Author(s): Liangping Xia; Qianying Zheng; Man Zhang; Suihu Dang; Wenjuan Yan; Yong Tan; Shijian Huang; Hongliang Cui; Chunlei Du
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Paper Abstract

To enhance the modulation of the terahertz wave in graphene based modulators, the hollow metallic structures are proposed in our works. With the field localization and enhancement raised by the resonant of the hollow metallic structures, the interaction between the graphene and the terahertz wave is enhanced. It leads to the modulation enhanced when the conductance of graphene is tuned by applied voltage. The samples with hollow square ring array structure and hollow H-cross array structure is discussed with simulations and experiments. The results indicate that the maximum modulation enhancement is achieved near the resonant frequencies.

Paper Details

Date Published: 18 November 2019
PDF: 5 pages
Proc. SPIE 11196, Infrared, Millimeter-Wave, and Terahertz Technologies VI, 111960F (18 November 2019); doi: 10.1117/12.2537512
Show Author Affiliations
Liangping Xia, Yangtze Normal Univ. (China)
Chongqing Institute of Green and Intelligent Technology (China)
Qianying Zheng, Chongqing Institute of Green and Intelligent Technology (China)
Man Zhang, Yangtze Normal Univ. (China)
Suihu Dang, Yangtze Normal Univ. (China)
Wenjuan Yan, Yangtze Normal Univ. (China)
Yong Tan, Yangtze Normal Univ. (China)
Shijian Huang, Yangtze Normal Univ. (China)
Hongliang Cui, Yangtze Normal Univ. (China)
Chongqing Institute of Green and Intelligent Technology (China)
Chunlei Du, Yangtze Normal Univ. (China)
Chongqing Institute of Green and Intelligent Technology (China)


Published in SPIE Proceedings Vol. 11196:
Infrared, Millimeter-Wave, and Terahertz Technologies VI
Cunlin Zhang; Xi-Cheng Zhang; Masahiko Tani, Editor(s)

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