class Rayleigh_Defect_BRDF_Model


The class Rayleigh_Defect_BRDF_Model is a Local_BRDF_Model, which implements a single scattering model for a very small defect below a surface. The surface may consist of one or more interfaces.

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 scattering is evaluated in reflection (0) or transmission (1).
(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)
density double The surface number density of local scatterers [µm-2].
(Inherited from Local_BRDF_Model.)
1
stack dielectric_stack Description of any stack of films deposited on the substrate, usually specified by a file. See dielectric_stack, for more information.
no films
radius double The radius of the spherical defect [µm]. 0.001
distance double The distance from the surface to the center of the spherical defect [µm]. 0
defect dielectric_function The optical constants of the spherical defect, expressed as a complex number (n,k) or, optionally, as a function of wavelength. (1.0,0.0)

See also:

SCATMECH Home,   Conventions,   Local_BRDF_Model,   dielectric_stack

T. A. Germer, "Angular dependence and polarization of out-of-plane optical scattering from particulate contamination, subsurface defects, and surface microroughness," Appl. Opt. 36, 8798-8805 (1997).

Include file:

#include "sphdfct.h"

Source code:

sphdfct.cpp

Definition of public members:

class Rayleigh_Defect_BRDF_Model
     : public Local_BRDF_Model
{
};

For More Information

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Current SCATMECH version: 6.00 (February 2008)
This page first online: Version 1.00 (March 2000)
This page last modified: Version 6.00 (February 2008)