Rostami Habib, Cilento Federico, Cappelluti Emmanuele
Department of Physics, University of Bath, Claverton Down, Bath BA2 7AY, UK.
Elettra-Sincrotrone Trieste S.C.p.A., 34149 Basovizza, Italy.
Nanomaterials (Basel). 2024 Apr 18;14(8):707. doi: 10.3390/nano14080707.
Single-layer transition-metal dichalcogenides provide an unique intrinsic entanglement between the spin/valley/orbital degrees of freedom and the polarization of scattered photons. This scenario gives rise to the well-assessed optical dichroism observed by using both steady and time-resolved probes. In this paper, we provide compact analytical modeling of the onset of a finite Faraday/Kerr optical rotation upon shining with circularly polarized light. We identify different optical features displaying optical rotation at different characteristic energies, and we describe in an analytical framework the time-dependence of their intensities as a consequence of the main spin-conserving and spin-flip processes.
单层过渡金属二硫属化物在自旋/谷/轨道自由度与散射光子的偏振之间提供了独特的内在纠缠。这种情况导致了通过使用稳态和时间分辨探针观察到的经过充分评估的光学二向色性。在本文中，我们提供了在圆偏振光照射下有限法拉第/克尔旋光性起始的紧凑解析模型。我们识别出在不同特征能量下显示旋光性的不同光学特征，并在一个解析框架中描述了由于主要的自旋守恒和自旋翻转过程导致的它们强度的时间依赖性。
