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View Inside PartiallyCoherentReflector: |
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PartiallyCoherentReflector models the reflected return from an optically-rough surface which has macroscopic surface depth on the order of or shorter than the temporal coherence length of the incident light. The physical/mathematical model used by PartiallyCoherentReflector is more precise in modeling partial coherence than the rough intuitive model of IncoherentReflector.
See the LightLike User Guide for further discussion of the physical/mathematical model encoded in PartiallyCoherentReflector, and related explanation of the module parameters. Also, see the Guide for properties and options in general of LightLike's rough-reflector modules. CoherentTarget, IncoherentReflector and PartiallyCoherentReflector are LightLike's three basic physical models for representing wave-optics scattering from an optically-rough surface.
C++ type |
name |
value |
description |
Parameters |
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Grid<double> |
reflectance |
Intensity reflectance map (BRDF) |
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Grid<double> |
surfaceDepth |
Macroscopic surface depth map, reflector shape (m) |
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double |
cavityLength |
1.0 |
Controls periodicity of relative coherence of longitudinal modes (m) |
double |
coherenceLength |
1.0 |
Coherence length of longitudinal modes (m) |
int |
iseedCoherence |
-987654323 |
Random number seed for complex amplitude temporal realization (periodic with period 2*cavityLength) |
double |
meanRoughness |
0.00001 |
2*(peak-valley) of micro surface roughness distribution (m) |
int |
iseedRoughness |
-987654325 |
Random number seed for micro surface roughness |
int |
propNxy |
512 |
Grid size for returned wave |
double |
propDxy |
0.001 |
Grid spacing for returned wave (m) |
int |
nWaves |
0 |
Number of temporal realizations to be added at sensor |
Inputs |
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Describes all light incident from the "incoming" direction |
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Describes all light incident from the "outgoing" direction |
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Outputs |
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Describes all light transmitted in the "incoming" direction |
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Describes all light transmitted in the "outgoing" direction |
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