Laser Etch Monitor Simulation in Python
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Python script to simulate a Laser Etch Monitor (aka. Laser Endpoint Detection).
- Make sure you have a Python installation running, that includes scientific libraries. The easiest method is to use the all-in-one installer "Anaconda". This also installs the Matlab-like IDE "Spyder".
- Download the EMpy repository by Lorenzo Bolla: https://github.com/lbolla/EMpy
- Move "ex_laser_etch_monitor.py" & "nk.py" out of the examples folder, so they're in the same directory as the "EMpy" library folder.
- Edit "ex_laser_etch_monitor.py" to reflect your structure.
- Set up your materials, layers, and then multi-layer stack.
- Refer to the file nk.py for material refractive index/dispersion models, or enter your own. You only need to know n & k at a single wavelength.
- You can use multipliers to produce repeating layers, as so:
- layers = [air] + 5 * [GaAs_DBR, AlGaAs_DBR] + [GaAs_substrate]
- In Spyder, run the script with "Interact with shell after execution" enabled. This allows you to keep messing with the figure and objects after execution, like in Matlab.