Green's functions theory of nanophotonic cavities with hyperbolic materials

TL;DR

This paper develops a Green's function theory for nanophotonic cavities with hyperbolic materials, enabling better understanding of their optical properties at deep subwavelength scales.

Contribution

It introduces a quasi-static Green's function framework specifically for hyperbolic media in nanophotonic cavities, which was not previously available.

Findings

Green's function theory tailored for hyperbolic nanocavities

Application to hexagonal boron nitride and metallic substrates

Enhanced understanding of subwavelength optical behavior

Abstract

We develop a theory of the quasi-static electrodynamic Green's function of deep subwavelength optical cavities containing an hyperbolic medium. We apply our theory to one-dimensional cavities realized using an hexagonal boron nitride and a patterned metallic substrate.