Metasurface based on phase change materials for electrically reconfigurable THz beam steering in copolarized transmission mode
摘要
Metasurfaces are an attractive technology to develop electronically-controlled beam steering devices of THz waves. However, the dynamic steering of co-polarized transmitted waves at a fixed frequency has not been demonstrated yet using this scheme. The performance of this configuration is usually limited by the low phase shifts achievable from thin-film reconfigurable meta-atoms, necessitating the exploration of novel methods. Here, we propose an alternative approach to address this challenge by designing a tunable metasurface utilizing a phase modulation range of only 116