Layer-Resolved Absorption of Light in Arbitrarily Anisotropic Heterostructures

Abstract

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.

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Cited by in corpus (9)

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• Spin-voltage-driven efficient terahertz spin currents from the magnetic Weyl semimetals Co${}_2$MnGa and Co${}_2$MnAl
• Nonlocal Scattering Matrix Description of Anisotropic Polar Heterostructures
• LayerPCM: An implicit scheme for dielectric screening from layered substrates
• Accessing ultrafast spin-transport dynamics in copper using broadband terahertz spectroscopy
• Layer-Resolved Resonance Intensity of Evanescent Polariton Modes in Anisotropic Multilayers
• Dynamic screening of quasiparticles in WS${}_2$ monolayers
• Data-driven design of multilayer hyperbolic metamaterials for near-field thermal radiative modulator with high modulation contrast
• Resonant Raman scattering of surface phonon polaritons mediated by excitons in WSe${}_2$ films