Graphical User Interface Guide¶

The GUI starting program is defined in ErwinJr.py, which includes two tabs: the quantum tab and the optical tab. The quantum tab is mostly a GUI wrapper of QCLayers with a plotting canvas, while the optical tab is for OptStrata

Quantum Tab¶

A screenshot of the ErwinJr.py quantum tab.¶

The interface includes 4 columns:

settingBox
Description	Used as a comment, not for calculation
Substrate	Decide substrate, can influence strain and material set
E-field	Global electrical field
Position resolution	Finite-element grid size
Energy resolution	Scan size for eigen solve root finder. This should be smaller than smallest energy difference. If this is too small it’s possible to lose some states
Repeats	Number of the whole structure
Basis Divisions	Defined for basis solver. See `QCLayers.solve_basis()`
Period info	Calculate total length, doping density and sheet density

layerBox
Layer Buttons	insert above layer and delete selected layer
Layer Table	Show the table that defines the layer structure

solveBox
Solve basis button	Call `QCLayers.solve_basis()` and update plot
Solve whole button	Call `QCLayers.solve_whole()` and update plot
Material Table	Define the material used in the structure and give some information about the material
Plot control	Layer Select: select layer in Layer Table by clicking Zoom: in with right button of mouse, out with left Pan: move with mouse Reset: make the plot back to default position Clear: remove all wavefunctions
Calculatin box	Pair Select: start to pick states by mouse FoM: calculating full information of the picked state pair Filter: remove unbounded state smartly (to improve)

And a plotting canvas.

Export of the figure and data, save and load actions are embedded into File menu; temperature setting and advanced table settings are in Edit menu; options to choose what is included in the plot is listed in View menu.

Todo

The Optical Tab