colour.plotting.plot_thin_film_spectrum

colour.plotting.plot_thin_film_spectrum(n: ArrayLike, t: ArrayLike, theta: ArrayLike = 0, shape: SpectralShape = SPECTRAL_SHAPE_DEFAULT, **kwargs: Any) → Tuple[Figure, Axes]

Plot reflectance spectrum of thin film using Transfer Matrix Method.

Shows the characteristic oscillating reflectance spectra seen in soap films and other thin film interference phenomena.

Parameters:

• n (ArrayLike) – Complete refractive index stack \(n_j\) for single-layer film. Shape: (3,) or (3, wavelengths_count). The array should contain [n_incident, n_film, n_substrate].

• t (ArrayLike) – Film thickness \(t\) in nanometers.

• theta (ArrayLike) – Incident angle \(\theta\) in degrees. Default is 0 (normal incidence).

• shape (SpectralShape) – Spectral shape for wavelength sampling.

• kwargs (Any) – {colour.plotting.artist(), colour.plotting.render()}, See the documentation of the previously listed definitions.

Returns:

Current figure and axes.

Return type:

tuple

Examples

>>> plot_thin_film_spectrum([1.0, 1.33, 1.0], 200)
(<Figure size ... with 1 Axes>, <...Axes...>)