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Research Article

Dual-band polarization-sensitive terahertz metamaterial absorber possessing frequency and amplitude dynamically-continuously tunable characteristics

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Pages 174-180 | Received 18 Jul 2021, Accepted 20 Feb 2022, Published online: 26 Jul 2022
 

Abstract

In order to suit the increasingly complex electromagnetism environment, multifunctional and continuously tunable terahertz device is becoming a research focus. In this paper, a frequency and amplitude tunable dual-band terahertz metamaterial absorber is proposed. Continuous tuning of absorption frequency and amplitude are completed by dynamic control of the conductivity of photosensitive silicon and the polarization angle, respectively. The tuning range of 55 GHz and amplitude modulation depth up to 100% are obtained. It can be concluded that the structure provides a new approach for the realization of future terahertz metamaterial absorbers possessing the characteristics of multifunction, portability, and intelligence.

Additional information

Funding

The work is support by the National Natural Science Foundation of China (62075052), Science Foundation of the National Key Laboratory of Science and Technology on Advanced Composites in Special Environments (JCKYS2020603C009), Natural Science Foundation of Heilongjiang Province (LH2019F022), Project of Innovative and Entrepreneurship Training Program for College students in Heilongjiang Province (202010214091) and Talents Project of Harbin Science and Technology Innovation (2016RAQXJ025).

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