A research team, led by Prof. Xiaoyong Tian in the State Key Laboratory for Manufacturing Systems Engineering at Xi’an Jiaotong University, has successfully manufactured a thermo-tunable broadband metamaterial (T-TBM) by 3D printing. The electromagnetic (EM) response of the T-TBM can be adjusted by controlling the solid–liquid phase state of different metamaterial units. Unlike previously reported active control metamaterials, the absorption response of the T-TBM can be controlled by the change of temperature; furthermore, its performance of ultra-wideband absorbing does not change with the temperature. The T-TBM can further promote the development of intelligent metamaterials and thermally controlled absorbers, according to the research team.
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