Dynamically changeable terahertz metamaterial absorbers with intelligent switch and high sensitivity and wide and narrow band perfect absorption

Author:

Zhao Qian1,Yi Zao1ORCID,Bian Liang1,Liu Huan2,Yang Hua3ORCID,Cheng Shubo4,Li Gongfa5,Zeng Liangcai5,Li Hailiang6ORCID,Wu Pinghui7ORCID

Affiliation:

1. Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China

2. Department of Electronics, School of Electronic Information, Huzhou College, Huzhou 313000, China

3. State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China

4. School of Physics and Optoelectronic Engineering, Yangtze University, Jingzhou, Hubei 434023, China

5. Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan 430081, China

6. Key Laboratory of Microelectronic Devices & Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029, China

7. Research Center for Photonic Technology, Fujian Key Laboratory for Advanced Micro-nano Photonics Technology and Devices & Key Laboratory of Information Functional Material for Fujian Higher Education, Quanzhou Normal University, Fujian 362000, China

Abstract

The dynamically tunable conductivity by shifting the Fermi level of the Dirac semimetal gives our absorber a variable absorption which frequency range of up to 0.52 THz. Our can provide a new idea for the research of THz metamaterial absorbers.

Funder

National Natural Science Foundation of China

Wuhan University of Science and Technology

Key Laboratory of Microelectronic Devices Integrated Technology, Chinese Academy of Sciences

Southwest University of Science and Technology

Publisher

Royal Society of Chemistry (RSC)

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy

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