yeh_tm.Layer.set_epsilon

Layer.set_epsilon(epsilon1=None, epsilon2=None, epsilon3=None)

Assign the dielectric functions to the main axes (x=1, y=2, z=3) of the layer in the crystal frame.

New in version 03-07-2016.

Parameters:

• epsilon1 (function) – Function that takes the frequency w as argument and returns a value for the dielectric constant along this axis. If no function is provided, defaults to vacuum.
• epsilon2 (function) – Function that takes the frequency w as argument and returns a value for the dielectric constant along this axis. If no function is provided, defaults to epsilon1.
• epsilon3 (function) – Function that takes the frequency w as argument and returns a value for the dielectric constant along this axis. If no function is provided, defaults to epsilon1.