finesse.gaussian.BeamParam.divergence

property BeamParam.divergence

Divergence of the beam.

The divergence is defined as,

d=λw0π,d = \frac{\lambda}{w_0 \pi},

where λ\lambda is the wavelength and w0w_0 is the waist size of the beam.

Getter:

Returns the beam divergence. Read-only.