Internal functions

CTMM_EXPORT ctmm_complex kz(ctmm_complex n, ctmm_complex k, double vwl)

Calculate kz.

Calculate the z (along stack) component of the wavevector from the x (parallel to interfaces) component of the wavevector in the zeroth layer.

Return

Wavevector z component.

Parameters

• n: Refractive index of layer.

• k: Wavevector x component in zeroth layer.

• vwl: Vacuum wavelength of illuminating light.

CTMM_EXPORT void evaluate_prop(ctmm_matrix * pmat, double d, ctmm_complex n, ctmm_complex k, double vwl)

Evaluate propigation matrix, for internal use.

Parameters

• pmat: Matrix to be filled.

• d: Layer thickness.

• n: Layer refractive index.

• k: Wavevector component parallel to interfaces.

• vwl: Vacuum wavelength of illuminating light.

CTMM_EXPORT void fresnel_coefs(ctmm_complex * coefs, ctmm_complex n0, ctmm_complex n1, ctmm_complex k, double vwl)

Calculate Fresnel coefficients.

Parameters

• coefs: Array to be filled with coefficients.

• n0: Refractive index in incident layer.

• n1: Refractive index in exident layer.

• k: Wavevector component parallel to interfaces.

• vwl: Vacuum wavelength of illuminating light.

CTMM_EXPORT void evaluate_tran(ctmm_matrix * tmat, ctmm_complex k, ctmm_complex n0, ctmm_complex n1, double vwl)

Calculate transfer matrix, for internal use.

Parameters

• tmat: Matrix to be filled.

• k: Wavevector component parallel to interfaces.

• n0: Refractive index in incident layer.

• n1: Refractive index in exident layer.

• vwl: Vacuum wavelength of illuminating light.