期刊
INTEGRATED FERROELECTRICS
卷 151, 期 1, 页码 157-163出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/10584587.2014.901115
关键词
Terahertz metamaterial; tunable absorber; dual band; polarization-insensitive
资金
- National Natural Science Foundation of China [51005001]
- Postdoctoral Science-Research Developmental Foundation of Heilongjiang Province [LBH-Q11082]
- Youth Academic Backbone Support Plan of Heilongjiang Province Ordinary College
- Science Funds for the Young Innovative Talents of HUST
We present the design, numerical simulations and characterization of a dynamically tunable dual band metamaterial absorber that shows two distinct absorption peaks in terahertz (THz) regime. The designed absorber consists of a metal ground plane fixed on substrate and a movable metamaterial suspended above the ground plane. Through applying a bias voltage to adjust the height between the suspended elements and metal ground plane, we can switch absorber's state between absorption and reflection. Moreover, the designed absorber is polarization-insensitive and can be operated over a wide range of incidence angles owing to the high degree symmetry of designed structure.
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