Periodic Condition

The sets up a periodicity between the selected boundaries. The subnode is available from the context menu (right-click the parent node) or from the toolbar, menu.

Boundary Selection

The software automatically identifies the boundaries as either source boundaries or destination boundaries This works fine for cases like opposing parallel boundaries. To control the destination, add a subnode. By default it contains the selection that COMSOL Multiphysics has identified.

Periodicity Settings

Select a — (the default), , or . Select:

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to make the electric field periodic (equal on the source and destination),

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to make it antiperiodic, or

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(The Electromagnetic Waves, Frequency Domain Interface only) to use a Floquet periodicity (Bloch-Floquet periodicity).

For also enter the source for the .

For specify the components of the kF (SI unit: rad/m).

For the kF is obtained from the settings.

Constraint Settings

To display this section, click the button (

) and select in the dialog box. For information about the section, see Constraint Settings in the COMSOL Multiphysics Reference Manual.

Orientation of Source

For information about the section, see Orientation of Source and Destination in the COMSOL Multiphysics Reference Manual.


	Periodic Boundary Conditions

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Fresnel Equations: Application Library path

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Plasmonic Wire Grating: Application Library path: