VCSELs (Vertical Cavity Surface Emitting Lasers) emit light perpendicular to the substrate surface. By combining these lasers with a thin layer of liquid crystal material, the aim is to enhance, tune or switch the properties of the laser emission. So far we have demonstrated the possibility of integrating VCSELs into a liquid crystal cell with the following functionalities:
A one-dimensional plane wave expansion model for fully anisotropic materials (based on L. Penninck, Opt. Express 2011) allows us to simulate the behaviour of the VCSELs with liquid crystal overlay.