Title: Terahertz Chiral Optics with Ordered Carbon Nanotube Architectures Show Chinese title

Title: 太赫兹手性光学与有序碳纳米管结构

Abstract: Chiral optical terahertz (THz) devices have significant technological implications for telecommunications, spectroscopy, and sensing. Engineering tunable, broadband, and cost-effective THz chiral materials has long been recognized as a challenging endeavor and has been the bottleneck hindering the full exploitation of the THz spectrum. Here, we present an artificial structure based on aligned carbon nanotube films that exhibit a tunable broadband circular dichroism (CD) up to 2.8 degrees. Its behavior is reciprocal. The developed theoretical simulations are in agreement with the experiments and predict a further increase of CD signal up to ~30 degrees when more CNT layers are added. Show Chinese abstract

Abstract: 手性光学太赫兹（THz）器件在电信、光谱学和传感技术方面具有重要的技术意义。 工程可调、宽带且成本效益高的太赫兹手性材料长期以来被认为是一项具有挑战性的任务，并且是阻碍充分开发太赫兹频谱的瓶颈。 在此，我们提出一种基于对齐碳纳米管薄膜的人工结构，其表现出可调的宽带圆二色性（CD），高达2.8度。 其行为是互易的。 开发的理论模拟与实验结果一致，并预测当增加更多CNT层时，CD信号可进一步增加至约30度。