Instruments that induce circular polarisation

They are linked to the three remaining parameters, and can be classified according to the type of polarisation they turn into circular polarisation. The Jones matrix are complex and the Mueller matrix have non zero non diagonal elements in the fourth row and column (linked to the V Stokes parameter).

From Q polarisation: (along one of the reference axis): The Jones matrix is

with the Mueller matrix;

From U polarisation: (at from the reference axis): The Jones matrix is

with the Mueller matrix;



From no polarisation: The Jones matrix is

with the Mueller matrix;