Journal
RESULTS IN PHYSICS
Volume 14, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.rinp.2019.102405
Keywords
Metamaterials; Absorbers; Local surface plasmon
Funding
- Natural Science Foundation Project of CQ CSTC [cstc2018jcyjAX0812]
- Youth project of science and technology research program of Chongqing Education Commission of China [KJQN201801212]
- Youth project of science and technology research program of Chongqing Education Commission of China (Program of Chongqing Municipal Key Laboratory of Institutions of Higher Education) [2017[3]]
- Program of Chongqing Development and Reform Commission [2017[1007]]
- Program of Innovation Team Building at Institutions of Higher Education in Chongqing [CXTDX201601034]
- Wanzhou Chongqing Special funds for scientific and technological talents [2016[1]]
- Achievement Transfer Program of Chongqing Three Gorges University [16PY02]
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A temperature-sensitive metamaterial containing vanadium dioxide (VO2) particles is designed and simulated in the terahertz band. A near-perfect absorption peak is achieved by optimizing structural parameters at room temperature. The peak amplitude and resonance frequency can be linearly modulated through changing structural parameters. Moreover, a new absorption band and an absorption peak are achieved when the simulated temperature reaches or exceeds the phase transition point of VO2 particles. The absorption band and the absorption peak are shifted to higher resonance frequencies with the temperature increasing. Moreover, this absorption band is expanded and the peak amplitude is gradually decreased with the temperature increasing. This proposed temperature-tunable terahertz metamaterial absorber can be used in many areas, such as sensing, communication, and more.
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