Reflection and transmission in nonlocal susceptibility models with multiple resonances

Abstract

We consider a semi-infinite dielectric with multiple spatially dispersive resonances in the susceptibility. The effect of the boundary is described by an arbitrary reflection coefficient for polarization waves in the material at the surface, with specific values corresponding to various additional boundary conditions (ABCs) for Maxwell's equations. We derive exact expressions for the electromagnetic reflection and transmission coefficients and present the results for a variety of materials with multiple exciton bands. We find an improved single-band approximation for heavy/light exciton bands and extend our model to exciton dispersion relations with linear $k$ terms which occur in uniaxial crystals. Finally, we calculate the spectral energy density of thermal and zero-point radiation for a variety of multi-resonance models and ABCs.

13 pages, 12 figures

References in corpus (6)

• Resonance shifts and spill-out effects in self-consistent hydrodynamic nanoplasmonics
• Near field radiative heat transfer between two nonlocal dielectrics
• Asymptotics of surface-plasmon redshift saturation at sub-nanometric separations
• Electromagnetic reflection, transmission and energy density at boundaries of nonlocal media
• Nonlocal study of the near field radiative heat transfer between two n-doped semiconductors
• Absorption in dipole-lattice models of dielectrics

Cited by in corpus (2)

• Surface Plasmon Polaritons Sustained at the Interface of a Nonlocal Metamaterial
• A resolution of the problem of additional boundary conditions