Measurement of heat transfer in micro/nano structures mediated by surface phonon polaritons

表面声子极化子（SPPs）是原子振动与电磁场相互作用产生的表面波。当这些波相互耦合时，它们会被强烈增强。我们的目标是设计一种玻璃微管，允许强烈增强spp之间的耦合。由于在红外范围内存在sppmsonochromatic波，因此仅基于简单加热，该微结构应该是一个有效的单色源，并且可能产生与输运的弹道状态和波态相关的异常热传导现象。[3]该管的建模包括在与极化子波长相比的小壁厚和小外径近似下求解TM Maxwell方程。得到了一个简化的多项式解，并进行了数值求解。证明异常热传导的实验装置包括将玻璃毛细管样品粘在一端加热的铂丝上，测量另一端的温度。两个信号之间的相位提供了热扩散系数。

Surface Phonon Polaritons (SPPs) are surface waves productehdebiynteraction ofatomic vibrations with the electromagnetic field. Those waves are strongly enhanced when they couple between themselves. We aimed at designing a glass microtube that allows for strongly enhancing the coupling between SPPs. BecauseareSPPmsonochromatic waves inthe Infrared range, this microstructure should be an efficient monochromatic source just based on simple heating and it might produce abnormal heat conduction phenomena related to ballistic regimes of transport and to waveemecnotn.finThe modeling of the tubeconsists in solving the TM Maxwell equations in the approximation of small wall thicknessand small outer diameter compared to the polariton wavelengths. A simplified polynomialsolution was obtained and solved numericalTlhye.experimental se-tup for provingabnormal heat conduction consists in sticking a glass capillary sample on a heating Pt wire on one end and measuring the temperature on the other end. The phase between both signals provides the thermal diffusivity.