标题： 石墨烯中的量化光束偏移 显示英文标题

标题： Quantized beam shifts in graphene

摘要： 我们预测了在外部磁场下入射到石墨烯-衬底系统上的光束的量子化Imbert-Fedorov、Goos-Hänchen和光子自旋霍尔位移。 在量子霍尔区域内，Imbert-Fedorov和光子自旋霍尔位移以精细结构常数$\alpha$的整数倍量化，而Goos-Hänchen位移则以$\alpha^2$的倍数量化。 我们研究了磁场、温度和材料色散与损耗对这些位移的影响。 在中等磁场值下，可以在太赫兹频率范围内实现量子化光束位移的实验演示。 显示英文摘要

摘要： We predict quantized Imbert-Fedorov, Goos-H\"anchen, and photonic spin Hall shifts for light beams impinging on a graphene-on-substrate system in an external magnetic field. In the quantum Hall regime the Imbert-Fedorov and photonic spin Hall shifts are quantized in integer multiples of the fine structure constant $\alpha$, while the Goos- H\"anchen ones in multiples of $\alpha^2$. We investigate the influence on these shifts of magnetic field, temperature, and material dispersion and dissipation. An experimental demonstration of quantized beam shifts could be achieved at terahertz frequencies for moderate values of the magnetic field.