The advent of nanotechnology has led to the inevitable need for miniaturization in optoelectronic devices. To achieve this goal, materials with low thickness, conductivity, and transparency, as well as a larger active area, must be developed. Experiments have proven that the opto-electrical properties of transition metal dichalcogenides (TMD)/graphene combinations are highly tunable. On the other hand, a notable feature of light when reflecting from an interface is its spatial and angular displacements. The “lateral shift” in the incident plane, referred to as the Goos–Hanchen (GH) shift, has garnered significant interest among researchers owing to its extensive range of applications. In our work, an atomically thin TMD/graphene/TMD sandwich heterostructure is proposed, and its spatial and angular GH shifts are investigated. The theoretical analysis includes various TMD materials such as MoSe2, MoS2, WSe2, and WS2. A detailed study of the effects of wavelength, polarization, incident angle, and number of TMD layers in symmetric and asymmetric structures suggests that this hybrid can serve as an ultrathin broadband tunable sensor in optical devices.

中文翻译：

---

过渡金属二硫属化物/石墨烯夹层异质结构作为可调谐横向反射移相器

纳米技术的出现不可避免地需要光电器件的小型化。为了实现这一目标，必须开发具有低厚度、低导电性和透明度以及更大活性面积的材料。实验证明，过渡金属二硫属化物（TMD）/石墨烯组合的光电特性是高度可调的。另一方面，光从界面反射时的一个显着特征是其空间和角位移。入射平面的“横向位移”，称为古斯-汉欣位移（GH），由于其广泛的应用而引起了研究人员的极大兴趣。在我们的工作中，提出了一种原子薄的TMD/石墨烯/TMD夹层异质结构，并研究了其空间和角度GH位移。理论分析包括MoSe2、MoS2、WSe2、WS2等多种TMD材料。对对称和非对称结构中波长、偏振、入射角和 TMD 层数量影响的详细研究表明，这种混合体可以用作光学器件中的超薄宽带可调谐传感器。