Generation of Ince-Gaussian Beams Using Azocarbazole Polymer CGH

Ince-Gaussian beams, defined as a solution to a wave equation in elliptical coordinates, have shown great advantages in applications such as optical communication, optical trapping and optical computation. However, to ingress these applications, a compact and scalable method for generating these beams is required. Here, we present a simple method that satisfies the above requirement, and is capable of generating arbitrary Ince-Gaussian beams and their superposed states through a computer-generated hologram of size 1 mm², fabricated on an azocarbazole polymer film. Other structural beams that can be derived from the Ince-Gaussian beam were also successfully generated by changing the elliptical parameters of the Ince-Gaussian beam. The orthogonality relations between different Ince-Gaussian modes were investigated in order to verify applicability in an optical communication regime. The complete python source code for computing the Ince-Gaussian beams and their holograms are also provided.