finesse.utilities.aberrations.spherical_surface¶
- finesse.utilities.aberrations.spherical_surface(X, Y, R, degrees=0)[source]¶
Computes the spherical height (sagitta) for a spherical mirror normal incidence. Will return NaNs for regions in X**2+Y**2 > R**2.
- Parameters:
- X, Y[array_like| float]
Coordinates to compute surface at
- Rfloat
Radius of curvature
- degreesfloat
Angle of incidence in degrees
- Returns:
- Z[array_like|float]
Height of the spherical surface
Notes
Coorindate system used is left-handed with positive R being in the +z direction. Formula is from equation 29 in [31].