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提出一种基于复式三角晶格光子晶体的新型高速太赫兹波调制器。该调制器采用点、线缺陷组合的结构,通过在点缺陷处填充非线性光控材料聚苯胺,实现对太赫兹波的通、断调制。基于RSoft软件仿真结果表明:该结构光子晶体太赫兹波调制器的插入损耗为0.31 dB,消光比为21.7 dB,响应时间为100 ps,调制速率为10 GHz。这种新型的光控光子晶体调制器在将来的高速太赫兹通信系统中具有重要的应用价值。
A new high-speed terahertz wave modulator based on double triangular lattice photonic crystal is proposed. The modulator adopts the combination of point and line defects, and the polycondensation of non-linear light-control material is filled in the point defects to realize the on-off modulation of the terahertz wave. The simulation results based on RSoft software show that the structure photonic crystal terahertz wave modulator has an insertion loss of 0.31 dB, an extinction ratio of 21.7 dB, a response time of 100 ps and a modulation rate of 10 GHz. This new type of light-controlled photonic crystal modulator in the future high-speed terahertz communication system has an important application value.