finesse.thermal.hello_vinet.surface_deformation_substrate_heating_HG00¶
- finesse.thermal.hello_vinet.surface_deformation_substrate_heating_HG00(r, a, h, w, material, T_ext=293.15, n_max=0, s_max=20, root_accuracy=1e-6)¶
Computes the depth displacement change of the surface of an optic due to bulk absorption from a HG00 beam. Displacement returned is in units of m per absorbed Watts through entire substrate.
The accuracy of this computation decreases as h/a > 1. The substrate modelled must be disk like. The error is more pronounced towards the edge of the substrate.
- Parameters
- rndarray
Radial points
- afloat
mirror radius
- hfloat
mirror thickness
- wfloat
spot size radius
- materialMaterial
Mirror substrate material, see
finesse.material- T_extfloat, optional
External temperature surrounding mirror
- n_maxint, optional
Maximum Bessel order for expansion
- s_maxint, optional
Maximum number of zeros to compute
- root_accuracyfloat, optional
Accuracy of root finding
- Returns
- U_z_bulk_per_Wndarray(shape=(r.size.))
Array of z displacements per watt of absorbed power through entire substrate [1W/h]
Notes
Solving equation 3.165 [32]
Currently only works for n_max == 0.