Calculation of Transmittance vs. Period Number in 1D Photonic Crystals Using Transfer Matrix Method

I have developed a MATLAB program that implements the transfer matrix method to calculate how transmittance changes with the number of periods in one-dimensional photonic crystals. This program is designed for researchers and students who need deep insights into photonic crystal properties, as it enables users to better understand the characteristics of photonic crystals and light-matter interactions. The implementation employs key matrix operations where each layer's effect is represented by a 2x2 transfer matrix, with sequential multiplication handling period stacking. The algorithm calculates electromagnetic wave propagation through periodic dielectric structures using characteristic matrices for individual layers. This practical tool helps users analyze transmittance patterns versus period count, facilitating better mastery of photonic crystal material applications. If you are interested in photonic crystal research, this program will significantly aid your studies through its clear visualization of bandgap formation and transmission properties.