Optical Dispersion Relations

Features

• A collection of exact and approximate optical dispersion relations.
• Academic Sources eg textbooks and journal articles.
• Fully tested (see test/) so users can calculate with confidence.

Examples

• Silver permittivity can be calculated with a Single Pole Drude-Lorentz model:

silver_dispersion = drude_lorentz.DrudeLorentz().with_angular_frequency(
	angular_frequency
).with_plasma_frequency(1.35e16).add_pole(
	damping_constant=0.0023*1.35e16
)

silver_permittivity = silver_dispersion.permittivity()

• Gold permittivity can be calculated with a Double Pole Drude-Lorentz model:

gold_dispersion = drude_lorentz.DrudeLorentz().with_dielectric_constant(
	6
).with_angular_frequency(angular_frequency).add_pole(
        peak_strength=6*5.37e15**2,
        damping_constant=6.216e13,
).add_pole(
        peak_strength=6*2.263e15**2,
        damping_constant=1.332e15,
        peak_position=4.572e15
)

gold_permittivity = gold_dispersion.permittivity()

• More examples can be found under /examples/.

Install

Install with pip eg:

pip3 install optical_dispersion_relations

Download the latest release here, or previous releases here.

Contribute

Contributions and conversations warmly welcome.