tidy3d.GaussianPulse

class GaussianPulse

Bases: Pulse

Source time dependence that describes a Gaussian pulse.

Parameters:

• amplitude (Attribute: amplitude) –

  Type	NonNegativeFloat
  Default	= 1.0
  Description	Real-valued maximum amplitude of the time dependence.

• phase (Attribute: phase) –

  Type	float
  Default	= 0.0
  Units	rad
  Description	Phase shift of the time dependence.

• freq0 (Attribute: freq0) –

  Type	PositiveFloat
  Default
  Units	Hz
  Description	Central frequency of the pulse.

• fwidth (Attribute: fwidth) –

  Type	PositiveFloat
  Default
  Units	Hz
  Description	Standard deviation of the frequency content of the pulse.

• offset (Attribute: offset) –

  Type	ConstrainedFloatValue
  Default	= 5.0
  Description	Time delay of the maximum value of the pulse in units of 1 / (2pi * fwidth).

• remove_dc_component (Attribute: remove_dc_component) –

  Type	bool
  Default	= True
  Description	Whether to remove the DC component in the Gaussian pulse spectrum. If True, the Gaussian pulse is modified at low frequencies to zero out the DC component, which is usually desirable so that the fields will decay. However, for broadband simulations, it may be better to have non-vanishing source power near zero frequency. Setting this to False results in an unmodified Gaussian pulse spectrum which can have a nonzero DC component.

Example

>>> pulse = GaussianPulse(freq0=200e12, fwidth=20e12)

Attributes

Methods

amp_time(time)

Complex-valued source amplitude as a function of time.

remove_dc_component

amp_time(time)

Complex-valued source amplitude as a function of time.

__hash__()

Hash method.