论文标题
纳米颗粒中近场辐射传热的共振增强
Resonant enhancement of the near-field radiative heat transfer in nanoparticles
论文作者
论文摘要
我们从数值上研究了在静态磁场辅助的平面SIC表面附近的球形INSB纳米颗粒之间的辐射传热调整。通过更改施加的磁场的值，由于磁化质量的激发，纳米球的介电函数变成各向异性。在偶极近似中，粒子的等离子体共振分为另外两个卫星共振，随着场的增加，它们转移到较高和较低的频率。当粒子的共振与SIC表面的声子 - 两极频率重叠时，获得了两个数量级的热传递的增强。为了了解辐射传热的调整，我们对可能会激发的模式的性质进行了详细的分析（表面，散装和双曲线）。
We numerically study the tuning of the radiative heat transfer between a spherical InSb nanoparticle in the vicinity of a flat SiC surface assisted by a static magnetic field. By changing the value of the applied magnetic field, the dielectric function of the nanosphere becomes anisotropic due to the excitation of magneto-plasmons. In the dipolar approximation, the plasmon resonance of the particle splits into two additional satellite resonances that shift to higher and lower frequencies as the field increases. When one of the particle resonances overlaps with the phonon-polariton frequency of the SiC surface, an enhancement of the heat transfer of two orders of magnitude is obtained. To understand the tuning of the radiative heat transfer, we present a detailed analysis of the nature of the modes that can be excited (surface, bulk, and hyperbolic).
