fouriax.FourierTransform

class FourierTransform

Bases: OpticalLayer

Explicit spatial → k-space domain transform layer.

__init__()

Return type:

None

Methods

__init__()
forward(field)	Apply this layer's optical transformation to field.
parameters()	Return trainable or configurable layer parameters.
validate_for(field)	Check that field is compatible with this layer.

forward(field)

Apply this layer’s optical transformation to field.

Parameters:

field (Field) – Input optical field to transform.

Returns:

Transformed field. Subclasses should preserve batch axes, wavelength axes, and metadata unless the layer explicitly changes them.

Return type:

Field