In 2D axisymmetry, when incident field can be specified, the default subnode Symmetry Axis Reference Point is available. This subnode defines a reference point at the intersection between the symmetry axis and the Scattering boundary condition’s boundary selection.
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So, if the scattering problem consists of a scatterer embedded in a top superstrate and a bottom substrate, a structure similar to what is used in the tutorial model Plasmonic Wire Grating, the background field should be either a numerical or analytical solution to the two-layer superstrate-substrate problem. The tutorial model Scatterer on Substrate demonstrates how to compute a numerical background field that is used in a following scattered field formulation study.
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For the Electromagnetic Waves, Frequency Domain interface, select an Order —First order (the default) or Second order.
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For Cylindrical wave also enter coordinates for the Source point r0 (SI unit: m) and Source axis direction raxis (dimensionless). For 2D the Source axis direction is assumed to be in the z direction, whereas in 2D axisymmetry it is assumed to be along the axis of rotation.
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Beam Splitter: Application Library path Wave_Optics_Module/Optical_Scattering/beam_splitter
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Leaky Modes in a Microstructured Optical Fiber: Application Library path Wave_Optics_Module/Verification_Examples/microstructured_optical_fiber
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Second Harmonic Generation of a Gaussian Beam: Application Library path Wave_Optics_Module/Nonlinear_Optics/second_harmonic_generation
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When the Dispersion and absorption model is set to Low loss approximation the refractive index is calculated from the relative permittivity and the relative permeability as
When the Dispersion and absorption model is set to High loss, the real and the imaginary parts of the complex refractive index is solved for from the real and the imaginary parts of the relative permittivity, using the relations
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