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Introductions of material types, built-in material libraries, and imported material libraries in the software.
This section describes optical materials.
Optical materials in the software are supported in all algorithms (FDTD, FDFD, and FDE).
The software provides diverse material data or models, including dielectric material, conductive material, model material, sampled-data material, nonlinear materials, and emerging hot materials, and allows users to define materials. Users can edit material parameters on the Material data page, and switch to the Material fitting page for manual fitting or checking of the material models.
This section describes dielectric material, (n, k) material, and conductive material.
This section describes Debye material, Drude material, and Lorentz material.
Debye material, Drude material, and Lorentz material are types of material models that are determined based on dispersion formulas.
This section describes nonlinear materials.
Nonlinear materials are those whose optical properties change with the intensity of the incident light field. Under certain conditions, such as phase matching, light interacts with the medium, exchanges energy, and thereby generates nonlinear optical phenomena like optical frequency doubling.
In the software, nonlinear materials consist of base materials and nonlinear coefficients. The software supports two nonlinear algorithms: Chi2 nonlinear and Chi3 Raman/Kerr nonlinear.
This section describes sampled data materials.
Sampled data material is one of the most important types of materials. Since sampled data material is derived from experimental data, measurement data may vary with different materials under different test conditions.
This section describes graphene materials.
Graphene is an ultra-thin optical material (consisting of a single layer of atoms). Graphene is normally characterized by the surface conductivity rather than permittivity .
