cda (version 1.5.1)

polarizability_ellipsoid: polarizability_ellipsoid

Description

principal polarizability components for an ellipsoidal particle

Usage

polarizability_ellipsoid(wavelength, epsilon, a = 50, b = 30, c = b, medium = 1.33, kuwata = TRUE)

Arguments

wavelength

wavelength in nm

epsilon

complex permittivity

a

semi-axis in nm

b

semi-axis in nm

c

semi-axis in nm

medium

surrounding medium

kuwata

logical, use Kuwata or Clausius Mossotti prescription, see Details

Value

matrix of polarizability

Details

uses the Kuwata prescription (see references)

The Kuwata version includes semi-empirical terms of radiative correction and dynamic depolarisation to better match the fully retarded dipolar response in a reasonable range of (subwavelength) sizes and aspect ratios.

References

Kuwata et al. Resonant light scattering from metal nanoparticles: Practical analysis beyond Rayleigh approximation Appl. Phys. Lett. 83, 22 (2003)

See Also

Other user_level polarizability: alpha_kuwata, inverse_polarizability, La