alpha_ellipsoid: alpha_ellipsoid

In baptiste/cda: Coupled-Dipole Approximation for Electromagnetic Scattering by Three- Dimensional Clusters of Sub-Wavelength Particles

alpha_ellipsoid

Description

Principal polarisability components for an ellipsoidal particle

Usage

alpha_ellipsoid(sizes, material, medium)

Arguments

sizes	matrix of cluster sizes in nm
material	data.frame with wavelength and epsilon
medium	refractive index of surrounding medium

Details

This long-wavelength polarisability approximation uses the Kuwata prescription

The Kuwata prescription 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.

Value

matrix of polarisability

Author(s)

baptiste Auguie

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 polarisability: alpha_bare(), alpha_dye()

baptiste/cda documentation built on May 6, 2022, 5:52 a.m.