Stack Geometry

#include <geometries/psMakeStack.hpp>

The MakeStack generates a stack of alternating SiO₂/Si₃N₄ layers featuring an optionally etched hole (3D) or trench (2D) at the center. The stack emerges in the positive z direction (3D) or y direction (2D) and is centered around the origin, with its x/y extent specified. Users have the flexibility to introduce periodic boundaries in the x and y directions. Additionally, the stack can incorporate a top mask with a central hole of a specified radius or a trench with a designated width. This versatile functionality enables users to create diverse and customized structures for simulation scenarios.

// namespace viennaps
// with DomainSetup configured (v3.3.0)
MakeStack(psDomainType domain, 
          int numLayers, 
          NumericType layerHeight,
          NumericType substrateHeight, 
          NumericType holeRadius,
          NumericType trenchWidth, 
          NumericType maskHeight,
          NumericType taperAngle, 
          bool halfStack = false,
          Material maskMaterial = Material::Mask)

MakeStack(DomainType domain, 
          NumericType gridDelta,
          NumericType xExtent, 
          NumericType yExtent,
          int numLayers, 
          NumericType layerHeight,
          NumericType substrateHeight,
          NumericType holeRadius,
          NumericType trenchWidth,
          NumericType maskHeight, 
          bool periodicBoundary = false)

Parameter	Description	Type
`domain`	Specifies the domain type for the stack geometry.	`SmartPointer<Domain<NumericType, D>>`
`gridDelta`	Represents the grid spacing or resolution used in the simulation.	`NumericType`
`xExtent`	Defines the extent of the stack geometry in the x-direction.	`NumericType`
`yExtent`	Specifies the extent of the stack geometry in the y-direction.	`NumericType`
`numLayers`	Sets the number of layers in the stack.	`int`
`layerHeight`	Determines the height of each layer in the stack.	`NumericType`
`substrateHeight`	Specifies the height of the substrate.	`NumericType`
`holeRadius`	Sets the radius of the hole.	`NumericType`
`trenchWidth`	Determines the width of the trench.	`NumericType`
`maskHeight`	Specifies the height of the mask.	`NumericType`
`periodicBoundary`	(Optional) If set to true, enables periodic boundaries. Default is set to false.	`bool`

trenchWidth and holeRadius can only be used mutually exclusive. I.e., if one is set, the other has to be set to 0.

Example usage:

C++

// namespace viennaps
auto domain = SmartPointer<Domain<NumericType, D>>::New();
MakeStack<NumericType, D>(domain, 0.5, 10.0, 10.0, 5, 5.0, 10., 0.0, 5.0,
                            0.0, false)
    .apply();

Python

domain = vps.Domain()
vps.MakeStack(domain=domain,
              gridDelta=0.5,
              xExtent=10.0,
              yExtent=10.0,
              numLayers=5,
              layerHeight=5.0,
              substrateHeight=10.0,
              holeRadius=0.0,
              trenchWidth=5.0,
              maskHeight=0.0,
              periodicBoundary=False,
             ).apply()