finesse.solutions.beamtrace.PropagationSolution.waistsize

PropagationSolution.waistsize(at)[source]

Waist radius as measured from a given location of the path.

Parameters:
See :meth:`.PropagationSolution.q`.
Returns:
wfloat or Function

Waist size using the beam parameter basis at the specified node.

Raises:
See PropagationSolution.q().