Calculating Photonic Crystal Waveguide Bandgaps Using COMSOL and MATLAB

COMSOL software and MATLAB can be employed to calculate photonic crystal waveguide bandgaps, both being highly suitable tools for photonic crystal computations. During the calculation process, we can explore various parameters such as photonic crystal structures and material properties through COMSOL's finite element analysis and MATLAB's scripting capabilities. The implementation typically involves setting up the unit cell geometry in COMSOL, defining periodic boundary conditions, and using MATLAB for post-processing the eigenfrequency results to generate band diagrams. Furthermore, through computational analysis we can understand the physical properties of photonic crystals, enabling better design and performance optimization. In MATLAB, one might implement algorithms like plane wave expansion or finite difference time domain methods to complement COMSOL's simulations. These tools serve as essential instruments for photonic crystal research and development, warranting thorough study and exploration.