Correlation between Optical properties of 3D models and their 2D analogs

It is widely known that numerical solutions of Maxwell equations in three dimensions require substantial memory and processor resources. For this reason, it is attractive to analyze the propagation of light in complex 3D waveguiding structures by studying the behavior of their simplified 2D analogs. In this project we study the validity of such approximations, using examples of abruptly terminated and bent waveguides, commonly used as laser cavities in quantum cascade lasers.