Fig. 3: Polarization-resolved intensity and helicity of third-harmonic light.
From: Light structuring via nonlinear total angular momentum addition with flat optics
Optical images and numerical simulations of polarization resolved patterns excited with an elliptically polarized pump laser with α = 43.9° (a) and 37.9° (b) Numerical simulations of helicity of the pump and generated TH signal for α = 43.9° (c) and 37.9° (d) Electric fields were calculated on the film surface, helicity values are normalized by the corresponding maximum value for Λ+. Scale bars, 2 μm
