finesse.gaussian.BeamParam.gouy¶
- BeamParam.gouy(z=None, wavelength=None, nr=None, w0=None)[source]¶
Computes the Gouy-phase as a function of any of the dependent arguments.
- Parameters
z : float, optional
Distance along optical axis relative to waist, defaults to
BeamParam.z
for this beam parameter.wavelength : float, optional
Wavelength of the beam to use, defaults to
BeamParam.wavelength
for this beam parameter.nr : float, optional
Refractive index to use, defaults to
BeamParam.nr
for this beam parameter.w0 : float, optional
Waist-size of the beam, defaults
BeamParam.w0
for this beam parameter.- Returns
- The accumulated Gouy phase using the specified properties.