PolySlab

Polygon extruded with optional sidewall angle along axis direction.

Axis

axis: Specifies dimension of the planar axis.

Note: PolySlab can only support axis=z in this version of Tidy3D. Support for slabs oriented in other axes will be available in future releases.

Options:

• z (2 in Simulation JSON)

Default: z

Slab Bounds

slab_bounds: Minimum and maximum positions of the slab along axis dimension.

Type: floating-point number

• Unit: μm
• Required field

Dilation

dilation: Dilation of the polygon in the base by shifting each edge along its normal outwards direction by a distance; a negative value corresponds to erosion.

Type: floating-point number

• Unit: μm
• Default: 0

Sidewall Angle

sidewall_angle: Angle of the sidewall.

• sidewall_angle=0 specifies vertical wall (default)
• 0<sidewall_angle<π/2 for the base to be larger than the top
• -π/2<sidewall_angle<0 for the base to be smaller than the top

Type: floating-point number

• Unit: rad
• Constraint: (-π/2, π/2)
• Default: 0

Vertices

vertices: List of (d1, d2) defining the 2 dimensional positions of the base polygon face vertices along dimensions parallel to slab normal axis.

Type: floating-point number

• Unit: μm
• Required field