Polaritonic manipulation based on the spin-selective optical Stark effect in the WS2 and Tamm plasmon hybrid structure
Polaritonic manipulation based on the spin-selective optical Stark effect in the WS2 and Tamm plasmon hybrid structure
复制标题
基于 WS2 和 Tamm 等离子体混合结构中自旋选择性光学斯塔克效应的极化子操纵
作者：
W.L. Zhang;X.J Li;S.S. Wang;C.Y. Zheng;X.F. Li;Y.J. Rao
激子-极化激元作为一种低能耗、稳定的固态平台，在光电子集成和量子信息应用中显示出巨大的潜力。在这里，提出了一种全光学方法，使用自旋敏感的光学斯塔克效应操纵激子极化激元的功能极化激元操作。我们使用了一个Tamm等离子体激元和WS 2的混合结构与图案化的横向潜力，形成沟道亮态的极化激元。光斯塔克脉冲引起极化激元势的扰动，从而控制隔离通道之间的极化激元隧穿。通过适当地设置光斯塔克脉冲（例如，脉冲宽度）。此外，利用极化光斯塔克脉冲诱导的谷选择性激子能量移动，提出了极化激元的自旋敏感操纵。这些基本操作与光斯塔克脉冲的时空编程一起将为未来的光电集成和联网铺平极化激元的路由和寻址的道路。
Exciton–polaritons have shown great potential as a low-energy consumption and robust solid-state platform for photoelectronics integration and quantum information applications. Here, an all-optical method that uses the spin-sensitive optical Stark effect is proposed to manipulate exciton–polaritons for functional polaritonic operations. We use a Tamm plasmon and WS2 hybrid structure with a patterned transverse potential to form the channeled bright state of polaritons. An optical Stark pulse causes perturbation of the polaritonic potential, so as to control the tunneling of polaritons between isolated channels. Polaritonic operations such as switching, splitting and routing were proposed through properly setting of the optical Stark pulse (e.g., pulse width). In addition, spin-sensitive manipulation of the polaritons was proposed taking advantage of the valley-selective excitonic energy shifting induced by the polarized optical Stark pulse. These basic operations together with time-space programming of the optical Stark pulses would pave a way of routing and addressing of polaritons for future optoelectronic integration and networking.