论文标题
由于光学TAMM状态在Terahertz范围内，反射光的旋转厅效应增强了反射光的效应
Enhanced spin hall effect of reflected light due to Optical Tamm states with Dirac semimetal at the terahertz range
论文作者
论文摘要
增强的光子自旋霍尔效应（PSHE）在光子的柔性操纵中起积极的作用。在这里，通过将狄拉克半学与由一维光子晶体构建的Bragg反射器相结合，我们从理论上设计了一种简单的多层结构来增强和操纵PSHE。通过狄拉克半法的电导率特性和整个模型的结构参数的详细和最佳设计，我们意识到了多层结构中光学TAMM状态（OTS）的激发，以便可以增强PSHE和可控制的PSHE。理论结果表明，通过优化费米能量和狄拉克半学的厚度，在p极化和S极化下可以增加反射系数比率，从而为增强的PSHE创造条件。另外，还阐明了入射角和间隔层的参数对PSHE的影响。我们认为，上述结果可以为构建可控制的旋转设备提供新的范式。
The enhanced photonic spin hall effect (PSHE) plays a positive role in the flexible manipulation of photons. Here, by combining Dirac semimetals with Bragg reflector constructed by one-dimensional photonic crystal, we theoretically design a simple multilayer structure to enhance and manipulate the PSHE. Through the detailed and optimal design of the conductivity characteristics of Dirac semimetals and the structural parameters of the whole model, we realize the excitation of Optical Tamm states (OTSs) in the multilayer structure, so that the PSHE can be enhanced and controllable. The theoretical results show that by optimizing the Fermi energy and the thickness of Dirac semimetal, the reflection coefficient ratio can be increased under p-polarization and s-polarization, thus creating conditions for enhanced PSHE. In addition, the effects of the incident angle and the parameters of the spacer layer on the PSHE are also clarified. We believe above results can provide a new paradigm for the construction of controllable spin devices.
