Distribution of scattering microparticles inside a medium (conceptual figure).
Light scattered inside a medium (conceptual figure).
This software provides the possibility to define volume scattering (internal scattering) which takes place inside media containing microparticles. Light entered into the medium containing microparticles is scattered by microparticles and propagates in various directions. It allows modeling resins with scattering additives, for example.
Applications
The following media can be defined:
- Functional films such as diffusion sheets
- Functional resins such as diffusion-transmission plates
- HSOT polymer (highly scattering optical transmission polymer)
- Milky white glass
Features
- Definition of volume scattering properties based on a medium formulation
- Coexistence of particles of different sizes and optical properties inside a medium
- Automatic switching of a volume scattering model (Mie or Rayleigh scattering) depending on the conditions
- Possibility to define an original scattering function (phase function) by users
- Consideration of polarization due to the interaction between particles and light
Specification
| Particle shape |
Sphere |
| Spatial distribution of particles |
Regular distribution |
| Distribution of particle diameter |
Discrete (concentration defined for each particle diameter) |
| Parameter of particles |
- Concentration (volume concentration)
- Particle diameter (nanometers to micrometers)
- Refraction index (real part of complex refractive index defined for each wavelength)
- Absorption coefficient (imaginary part of complex refractive index defined for each wavelength)
|
| Optical properties of embedding medium |
- Refractive index (defined for each wavelength)
- Transmission coefficient per unit length (defined for each wavelength)
|
| Volume scattering model |
- Mie scattering and Rayleigh scattering (automatically selected depending on the particle diameter)
- User-defined model (scattering function for particles is defined)
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