mnpbem-mie 0.1.5

Mie and Rayleigh scattering approximations for spherical particles.

mnpbem-mie

mnpbem-mie provides Rayleigh-limit scattering formulas for small spherical particles.

Implemented Formulations

Polarizability:

\alpha = 4\pi a^3\frac{\varepsilon_p-\varepsilon_m}{\varepsilon_p+2\varepsilon_m}

Wave number in medium:

k = \frac{2\pi}{\lambda}\sqrt{\varepsilon_m}

Cross sections:

C_{\mathrm{ext}} = k\,\mathrm{Im}(\alpha),\quad
C_{\mathrm{sca}} = \frac{|k|^4}{6\pi}|\alpha|^2,\quad
C_{\mathrm{abs}} = C_{\mathrm{ext}}-C_{\mathrm{sca}}

Implementation

• Rayleigh model: src/mnpbem_mie/rayleigh.py

Dependencies

• numpy>=1.24

Installation

pip install mnpbem-mie

Example

Runnable example:

• examples/basic_usage.py

Run:

python examples/basic_usage.py

Author

• GALIH RIDHO UTOMO
• [e-mail]