Figure 5

Analysis of singularity’s diameter between gHLG\(^{15}_{\ell ,p}\) and its SHG signal. (a) Comparison in line profiles between gHLG\(^{15}_{3,0}\) and its SHG signal in numerical model. (b) Comparison in line profiles between gHLG\(^{15}_{3,0}\) and its SHG signal experimentally. (c) Ratio of singularity diameter of intensity at plane (iii) and plane (ii) as a function of topological charge of the input beam at plane (i).