论文标题
在任意各向异性异质结构中光的层分辨率吸收
Layer-Resolved Absorption of Light in Arbitrarily Anisotropic Heterostructures
论文作者
论文摘要
我们提出了一种广义的形式主义，以描述任意各向异性分层结构中的光学流量和空间分辨的吸收。该算法能够治疗任意各向异性，双折射和吸收媒体的任意层，并在开放式计算机程序中实现。我们使用电场分布从4 $ \ tims $ 4 $ 4传输矩阵形式主义来得出了多层结构中任何一点的传输和吸收功率的明确表达式。 As a test ground, we study three nanophotonic device structures featuring unique layer-resolved absorption characteristics, making use of (i) in-plane hyperbolic phonon polaritons, (ii) layer-selective, cavity-enhanced exciton absorption in transition metal dichalcogenide monolayers, and (iii) intersubband-cavity polaritons in quantum wells.案例研究涵盖了从远红外到可见的范围，范围从远红外到可见，证明了我们方法的通用性和广泛的适用性。
We present a generalized formalism to describe the optical energy flow and spatially resolved absorption in arbitrarily anisotropic layered structures. The algorithm is capable of treating any number of layers of arbitrarily anisotropic, birefringent, and absorbing media and is implemented in an open access computer program. We derive explicit expressions for the transmitted and absorbed power at any point in the multilayer structure, using the electric field distribution from a 4 $\times$ 4 transfer matrix formalism. As a test ground, we study three nanophotonic device structures featuring unique layer-resolved absorption characteristics, making use of (i) in-plane hyperbolic phonon polaritons, (ii) layer-selective, cavity-enhanced exciton absorption in transition metal dichalcogenide monolayers, and (iii) intersubband-cavity polaritons in quantum wells. Covering such a broad spectral range from the far-infrared to the visible, the case studies demonstrate the generality and wide applicability of our approach.
