Topological Charge and Fourier Optics Calculation of Vortex Beams Carrying Orbital Angular Momentum
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Wei E.I. Sha, Zhihao Lan, Menglin L.N. Chen, Yongpin P. Chen, and Sheng Sun, “Spin and Orbital Angular Momenta of Electromagnetic Waves: From Classical to Quantum Forms,” IEEE Journal on Multiscale and Multiphysics Computational Techniques, vol. 9, pp. 113-117, Mar. 2024.
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Ling-Jun Yang, Sheng Sun, and Wei E.I. Sha, “Manipulation of Orbital Angular Momentum Spectrum Using Shape-Tailored Metasurfaces,” Advanced Optical Materials, vol. 9, pp. 2001711, Jan. 2021.
OAM_Fourier_Optics.m: Fourier optics and dyadic Green's function methods for modeling propagation of a vortex beam/wave. Zero padding is employed to avoid aliasing and minimize edge effects.
OAM_TC.m: Spectral method is used to extract the topological charge of a vortex beam/wave.
Prof. Sheng Sun at University of Electronic Science and Technology of China