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Proceedings Paper

Tunable, angle and polarization-insensitive broadband absorber
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Paper Abstract

Using the principle of Surface Plasmons Polaritons, we propose a graphene broadband terahertz absorption structure that achieves the tunable absorption of electromagnetic waves. In our absorption structure, the method of patterning graphene is used to realize continuous broadband absorption from 0.5THz to 2.1THz. The absorption which is more than 50% reaches 1.1THZ, especially the structure designed here has three plasmonic resonance peaks which above 98% at 0.79THz, 1.18THz and 1.35THz, respectively. In addition, the symmetry in the pattern design consider that our absorption structure is not sensitive to the polarization and incident angle. Due to a series of excellent characteristics of the absorption structure, it may play an important role in the field of aircraft stealth, absorber, and light wave modulation.

Paper Details

Date Published: 12 March 2020
PDF: 8 pages
Proc. SPIE 11440, 2019 International Conference on Optical Instruments and Technology: Micro/Nano Photonics: Materials and Devices, 114400E (12 March 2020); doi: 10.1117/12.2547546
Show Author Affiliations
Xinpeng Jiang, National Univ. of Defense Technology (China)
Junbo Yang, National Univ. of Defense Technology (China)
Zhaojian Zhang, National Univ. of Defense Technology (China)
Jingjing Zhang, National Univ. of Defense Technology (China)
Wanlin Xie, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 11440:
2019 International Conference on Optical Instruments and Technology: Micro/Nano Photonics: Materials and Devices
Baojun Li; Xingjun Wang; Ya Sha Yi, Editor(s)

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