pymiediff.Particle.get_material_permittivities

Particle.get_material_permittivities(k0: Tensor) → tuple

Return spectral permittivities of core, shell and environment.

Parameters:

k0 (torch.Tensor) – Tensor containing all evaluation wavenumbers (rad nm^-1).

Returns:

(eps_c, eps_s, eps_env)

eps_c : core permittivity evaluated at k0. eps_s : shell permittivity evaluated at k0 (or equal to eps_c for a homogeneous particle). eps_env : environment permittivity evaluated at k0.

Return type:

tuple of torch.Tensor