Switchable Dual-Function Terahertz Metamaterial Device Based on Vanadium Dioxide
Source abstract
Abstract
On the basis of the temperature-controlled phase change properties of vanadium dioxide (VO2), a dual-functional terahertz metamaterial device is proposed. The device can be switched between an absorber and a polarization converter. Simulation results demonstrate that the device acts as a terahertz wave absorber when the VO2 is in the metallic state, and the reflected extinction ratio is less than −15 dB in the frequency range between 1.07 and 1.19 THz. Moreover, the absorption performance is insensitive to polarization. When the VO2 is in the insulated state, the device behaves as a polarization converter, which can convert line-polarized light to cross-polarized light. The polarization conversion rate of the device is over 90% in the frequency range between 1.43 and 1.51 THz. The proposed dual-functional metamaterial device with tunable and diverse functions has broad and potentially useful uses in areas such as terahertz detection, modulation, and switching.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Metamaterials and Metasurfaces Applications · Plasmonic and Surface Plasmon Research · Photonic Crystals and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Opto-electronic Engineering, Changchun University of Science and Technology, Changchun 130022, China
Funding
Department of Science and Technology of Jilin province · Jilin Provincial Department of Education Scientific Research Project
References (34)
Show source-provided references
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