THUY LINH, Nguyen et al. Numerical Study on Micro-optical Vortex Generation with the Use of an Achromatic Nanostructured Phase Mask. VNU Journal of Science: Mathematics - Physics, [S.l.], mar. 2026. ISSN 2588-1124. Available at: <https://js.vnu.edu.vn/MaP/article/view/5074>. Date accessed: 12 mar. 2026. doi: https://doi.org/10.25073/2588-1124/vnumap.5074.