论文标题
扭曲的纳米颗粒光栅之间的近场辐射传热
Near-field radiative heat transfer between twisted nanoparticle gratings
论文作者
论文摘要
我们研究了两个有限大小的极性介电纳米颗粒光栅之间的近场辐射热传递。与以前对同一配置的研究不同，我们不依赖任何近似的有效培养基理论来描述光栅。通过完整的多体辐射传热理论，我们能够研究光栅之间的大小，距离和相对方向如何影响辐射热通量。通过更改扭曲角$θ$，由于正方形和圆形形状的光栅的尺寸效果，我们显示了导热电导$ g（θ）$的显着振荡。光栅之间的距离和扭曲依赖性耦合是对辐射导电的强大和特征性的调制，对能量管理，传感和NEMS/MEMS设备的影响。
We study the near-field radiative heat transfer between two twisted finite-size polar dielectric nanoparticle gratings. Differently from previous studies of the same configuration, we do not rely on any approximated effective medium theory to describe the gratings. By the full many-body radiative heat transfer theory we are able to investigate how the size, distance and relative orientation between the gratings influence the radiative heat flux. By changing the twisting angle $θ$, we show a significant oscillation of the thermal conductance $G(θ)$, due to the size effect for gratings of both square and circular shapes. The distance- and twisting-dependent coupling between the gratings accounts for a strong and characteristic modulation of radiative thermal conductance with implications for the energy management, sensing, and NEMS/MEMS devices.
