pymiediff.Particle

class pymiediff.Particle(r_core, mat_core, r_shell=None, mat_shell=None, mat_env=1.0, device=None)

__init__(r_core, mat_core, r_shell=None, mat_shell=None, mat_env=1.0, device=None)

Core-shell particle class

High-level user interface, does not support multiple particles. To evaluate multiple particles at once directly use pmd.farfield.cross_sections or pmd.farfield.angular_scattering which support particle vectorisation.

Parameters:

• r_core (float) – core radius (in nm)

• mat_core (pymiediff material) – core material. Either class for pymiediff.materials or float. In the case of a float, a constant material pymiediff.materials.MatConstant will be created using the float as refractive index value.

• r_shell (float, optional) – shell radius (in nm). If None, create homogeneous particle without shell. Defaults to None.

• mat_shell (pymiediff material, optional) – Shell material. Defaults to None.

• mat_env (pymiediff material, optional) – Environment material. Defaults to 1.0.

Methods

__init__(r_core, mat_core[, r_shell, ...])	Core-shell particle class
get_angular_scattering(k0, theta, **kwargs)	get angular scattering
get_cross_sections(k0, **kwargs)	get farfield cross sections
get_material_permittivities(k0)	return spectral permittivities of core, shell and environment
set_device(device)