A novel way for the design and the fabrication of phase-gradient Huygens metasurfaces, which uses laser-annealing of uniform particles made of As_2S_3 glass, is presented. Within the design process, numerical simulations are performed with JCMsuite to compute the reflection, transmission, and positions of poles and zeros.
E. Mikheeva, et al., Uniform Huygens Metasurfaces with Postfabrication Phase Pattern Recording Functionality. ACS Photonics, 10, 1538–1546 (2023).