dtmm.tmm2d

4x4 transfer matrix method functions for 2d data

Module Contents

dtmm.tmm2d.layer_mat2d(k0, d, epsv, epsa, betay=0.0, method='4x4', mask=None)

Computes characteristic matrix of a single layer M=F.P.Fi,

Numpy broadcasting rules apply.

Parameters

  • k0 (float or sequence of floats) – A scalar or a vector of wavenumbers

  • d (array_like) – Layer thickness

  • epsv (array_like) – Epsilon eigenvalues.

  • epsa (array_like) – Optical axes orientation angles (psi, theta, phi).

  • method (str, optional) – Either a 4x4 or 4x4_1

Returns

cmat – Characteristic matrix of the layer.

Return type

ndarray

dtmm.tmm2d.system_mat2d(fmatin, cmat, fmatout)

Computes a system matrix from a characteristic matrix Fin-1.C.Fout

dtmm.tmm2d.reflect2d(fvecin, fmatin, rmat, fmatout, fvecout=None)

Transmits/reflects field vector using 4x4 method.

This functions takes a field vector that describes the input field and computes the output transmited field vector and also updates the input field with the reflected waves.