Abstract
The equipment that can actively adjust the frequency and intensity of terahertz wave absorption peaks is a key link in the future development of terahertz wave intelligence. However, there was relatively little research on devices that can actively tune the absorption peak intensity of terahertz waves at this stage, which limits the development of intelligent terahertz wave devices. This thesis designs a three-dimensional tunable terahertz wave absorber. By bending the shape memory alloy or adjusting the Fermi level of graphene, the dual tuning of THz wave frequency and intensity can be realized. The absorber can achieve three perfect absorption peaks at 0.708, 1.929, and 2.334 THz, with absorption peak intensities of 99.99%, 99.57%, and 94.13%, respectively. The simulation results of this thesis provide data and references for the development of future smart terahertz devices.
Published Version
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