Coupling of surface plasmon polaritons (SPPs) supported by graphene and hyperbolic phonon polaritons (HPPs) supported by hyperbolic materials (HMs) could effectively promote photon tunneling, and hence the radiative heat transfer. In this work, we investigate the polariton hybridization phenomena on near-field radiative heat transfer (NFRHT) in multilayer heterostructures, which consist of periodic graphene/α-MoO3 cells. Numerical results show that increasing the graphene/α-MoO3 cells can effectively enhance the NFRHT when the vacuum gap is less than 50 nm, but suppresses the enhanced performance with larger gap distance. This depends on the coupling of SPPs and HPPs in the periodic structure, which is analyzed by the energy transmission coefficients distributed in the wavevector space. The influence of the thickness of the α-MoO3 film and the chemical potential of graphene on the NFRHT is investigated. The findings in this work may guide designing high-performance near-field energy transfer and conversion devices based on coupling polaritons.

中文翻译：

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周期性石墨烯/α-MoO3 电池中近场辐射传热的极化子杂化现象

石墨烯支持的表面等离子体激元 (SPP) 与双曲材料 (HM) 支持的双曲声子极化激元 (HPP) 的耦合可以有效促进光子隧穿，从而促进辐射传热。在这项工作中，我们研究了由周期性石墨烯/α-氧化钼3个细胞。数值结果表明，增加石墨烯/α-MoO3个当真空间隙小于 50 nm 时，电池可以有效地增强 NFRHT，但抑制较大间隙距离的增强性能。这取决于SPPs和HPPs在周期结构中的耦合，这是通过分布在波矢空间中的能量传输系数来分析的。α-MoO 厚度的影响3个研究了薄膜和石墨烯在 NFRHT 上的化学势。这项工作的发现可能会指导基于耦合极化子的高性能近场能量转移和转换设备的设计。