Hello everyone! I'm trying to create bilayer DBR structure which constitutes alternate high and low index layers. Sometimes If I have to create more layers, lets say more than 10 it consumes lot of time to create the DBR structure by layer by layer. So, in Lumerical FDTD we can also write script for creating geometries. Can anyone know how to write lumerical script file for DBR?
In Lumerical FDTD, you can indeed use scripting to create a complex geometry like a distributed Bragg reflector (DBR). Here is a simple example script for creating a multilayer stack with alternating high and low-index materials.
This script creates a DBR with a specified number of pairs, each consisting of two layers with high and low refractive indices. The thickness of each layer is set as a quarter of the wavelength.
Please adjust the parameters according to your requirements. This is just a basic script; you might need to modify it based on your specific needs.
# Constants and parameters
lambda0 = 1.55e-6; # Wavelength
n1 = 3.5; # Refractive index of high index material
n2 = 1.5; # Refractive index of low index material
N = 10; # Number of pairs
# Calculate quarter-wavelength thicknesses
d1 = lambda0 / (4 * n1);
d2 = lambda0 / (4 * n2);
# Create layers
for (i=0; i
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