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Proceedings Paper

Manipulating the strength and broadband of the resonators in the terahertz metamaterials
Author(s): Changxiang Liu; Qingli Zhou; Chenyu Li; Cunlin Zhang
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Paper Abstract

We investigate two dipoles which are attached or separated with the orthogonal arrangement in the terahertz frequency. These results show that the metasurface could achieve the resonance coupling and polarization conversion effect. There are two resonance dips in the transmission spectra, when these two dipoles are attached to form the L-shaped structure. With the spacing between vertical and horizontal dipoles separated, the broadband of the resonator becomes narrower and resonance dips merge into one deeper dip due to the superposition of the interaction of two dipoles. The loss of the energy is not only coupled to the free space but also converted to the cross-polarization. The broadband and the strength of the crosspolarization are modulated by changing the distance between the vertical and horizontal dipoles. Tuning the spacing, we control the co- and cross polarization of the broadband and the strength at the same time. This modulation provides the functionally potential applications in the terahertz modulators and filters.

Paper Details

Date Published: 12 January 2018
PDF: 8 pages
Proc. SPIE 10623, 2017 International Conference on Optical Instruments and Technology: IRMMW-THz Technologies and Applications, 1062304 (12 January 2018); doi: 10.1117/12.2295291
Show Author Affiliations
Changxiang Liu, Capital Normal Univ. (China)
Qingli Zhou, Capital Normal Univ. (China)
Chenyu Li, Capital Normal Univ. (China)
Cunlin Zhang, Capital Normal Univ. (China)


Published in SPIE Proceedings Vol. 10623:
2017 International Conference on Optical Instruments and Technology: IRMMW-THz Technologies and Applications
Cunlin Zhang; Xi-Cheng Zhang; Zhiming Huang; Liquan Dong, Editor(s)

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