class Correlated_Roughness_BRDF_Model

The class Correlated_Roughness_BRDF_Model implements the solution to first-order vector perturbation, or Rayleigh-Rice, theory for conformal roughness of a dielectric film in the smooth surface limit. It inherits the properties of Roughness_BRDF_Model, which inherits the properties of BRDF_Model.

Diagram showing the components contributing to the effective BRDF of a sample surrounded by air.

Parameters:

Parameter	Data Type	Description	Default
lambda	double	Wavelength of the light in vacuum [µm]. (Inherited from BRDF_Model).	0.532
type	int	Indicates whether the light is incident from above the substrate or from within the substrate and whether the scattering is evaluated in reflection or transmission. The choices are: 0 : Light is incident from the above the substrate, and scattering is evaluated in reflection. 1 : Light is incident from the above the substrate, and scattering is evaluated in transmission. 2 : Light is incident from the within the substrate, and scattering is evaluated in reflection. 3 : Light is incident from the within the substrate, and scattering is evaluated in transmission. (Inherited from BRDF_Model).	0
substrate	dielectric_function	The optical constants of the substrate, expressed as a complex number (n,k) or, optionally, as a function of wavelength. (Inherited from BRDF_Model).	(4.05,0.05)
psd	PSD_Function_Ptr	The two-dimensional power spectrum of the surface height function [µm⁴]. (Inherited from Roughness_BRDF_Model).	ABC_PSD_Function
film	dielectric_function	The optical constants of the film, expressed as a complex number (n,k) or, optionally, as a function of wavelength.	(1.46,0.05)
thickness	double	The thickness of the film [µm].	0.05

Include file:

#include "crough.h"

Source code:

crough.cpp

Definition of public elements:

class Correlated_Roughness_BRDF_Model
 : public Roughness_BRDF_Model
{
    public:
                        Correlated_Roughness_BRDF_Model( int ask=0);

        void set_thickness( double t);
        double get_thickness();

        void set_film(const dielectric_function& e);
                        dielectric_function get_film();

        virtual void AskUser();
        virtual void set_parameter(const string& name,const string& value);
        static Inheritance inheritance;
        virtual Model* clone() const;
};