论文标题
Terahertz独立金属互补的周期性谐振器
Quasibound states in the continuum in terahertz free-standing metal complementary periodic cross-shaped resonators
论文作者
论文摘要
我们在数值和实验上实现了在Terahertz（THZ）频率的独立金属互补周期性交叉形谐振器（CPCR）中，在连续体（BICS）中实现具有高Q因子的准分子。这种诱导的准键是由CPCR的镜像对称性的破坏产生。通过正确调整不对称因子，测量的准BIC Q因子可以达到102，由于系统分辨率有限，该因子的模拟Q系数低于166的模拟Q系数。我们还模拟了在准BICS的电场幅度和矢量分布，其中发现了电偶极子之间的外相比对。在这种薄的独立金属结构中实现的尖锐的准单行可能会立即提高Terahertz波动操纵或生物分子传感中过滤器和传感器的性能。
We numerically and experimentally achieve quasi-bound states in the continuums (BICs) with high-Q factors in the free-standing metal complementary periodic cross-shaped resonators (CPCRs) at terahertz (THz) frequencies. Such induced quasi-BICs arises from the breaking of the mirror symmetry of CPCRs. By properly tuning the asymmetric factor, the measured Q factor of quasi-BIC can reach 102, which is lower than the simulated Q factor of 166 due to the limited system resolutions. We also simulate the electric field magnitude and vector distributions at the quasi-BICs, where the out-phase alignment between the electric dipoles is found. The sharp quasi-BICs realized in this thin free-standing metal structure may immediately boost the performance of filters and sensors in terahertz wave manipulation or biomolecular sensing.
