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Title: Single mode to dual mode switch through a THz reconfigurable metamaterial
Authors: Zhang, Wu
Zhang, Meng
Yan, Zongkai
Zhao, Xin
Cheng, Jianping
Liu, Ai Qun
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Computer Simulation
Doppler Effect
Issue Date: 2017
Source: Zhang, W., Zhang, M., Yan, Z., Zhao, X., Cheng, J., & Liu, A. Q. (2017). Single mode to dual mode switch through a THz reconfigurable metamaterial. Applied Physics Letters, 111(24), 241106-. doi:10.1063/1.5008984
Series/Report no.: Applied Physics Letters
Abstract: Metamaterials interact with incident electromagnetic waves through their consisting subwavelength metamolecules. In this paper, we reported a reconfigurable metamaterial which tunes its THz response experimentally from a single mode resonance at 2.99 THz to a dual mode resonance at 2.94 THz and 2.99 THz. The reconfiguration is realized through a micromachined actuator, and the tunability is achieved by breaking the symmetry of the metamolecule. An abrupt change in the transmission is experimentally observed when the gap between two metallic structures is closed, and a decrease in transmission from 40% to 5% at 2.94 THz is obtained. Such a tunable metamaterial promises widespread applications in optical switches, filters, and THz detectors.
ISSN: 0003-6951
DOI: 10.1063/1.5008984
Rights: © 2017 American Institute of Physics. This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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