tidy3d.PlaneWave

class PlaneWave

Bases: AngledFieldSource, PlanarSource

Uniform current distribution on an infinite extent plane. One element of size must be zero.

Parameters:

• name (Attribute: name) –

  Type	Optional[str]
  Default	= None
  Description	Optional name for the source.

• center (Attribute: center) –

  Type	Tuple[float, float, float]
  Default	= (0.0, 0.0, 0.0)
  Units	um
  Description	Center of object in x, y, and z.

• size (Attribute: size) –

  Type	Tuple[NonNegativeFloat, NonNegativeFloat, NonNegativeFloat]
  Default
  Units	um
  Description	Size in x, y, and z directions.

• source_time (Attribute: source_time) –

  Type	Union[GaussianPulse, ContinuousWave, CustomSourceTime]
  Default
  Description	Specification of the source time-dependence.

• direction (Attribute: direction) –

  Type	Literal[‘+’, ‘-‘]
  Default
  Description	Specifies propagation in the positive or negative direction of the injection axis.

• angle_theta (Attribute: angle_theta) –

  Type	float
  Default	= 0.0
  Units	rad
  Description	Polar angle of the propagation axis from the injection axis.

• angle_phi (Attribute: angle_phi) –

  Type	float
  Default	= 0.0
  Units	rad
  Description	Azimuth angle of the propagation axis in the plane orthogonal to the injection axis.

• pol_angle (Attribute: pol_angle) –

  Type	float
  Default	= 0
  Units	rad
  Description	Specifies the angle between the electric field polarization of the source and the plane defined by the injection axis and the propagation axis (rad). pol_angle=0 (default) specifies P polarization, while pol_angle=np.pi/2 specifies S polarization. At normal incidence when S and P are undefined, pol_angle=0 defines: - Ey polarization for propagation along x.- Ex polarization for propagation along y.- Ex polarization for propagation along z.

Example

>>> pulse = GaussianPulse(freq0=200e12, fwidth=20e12)
>>> pw_source = PlaneWave(size=(inf,0,inf), source_time=pulse, pol_angle=0.1, direction='+')

See also

Notebooks:

• How to troubleshoot a diverged FDTD simulation

Lectures:

• Using FDTD to Compute a Transmission Spectrum

Attributes

Methods

__hash__()

Hash method.