Fig. 4: Theoretical and experimental results for generated STOVs.
From: Tailoring spatiotemporal wavepackets via two-dimensional space-time duality
a Reconstructed intensities and phases of generated STB vortices with topological charges of \(\ell=10\), 15, and 20. b Dependence of spatial (temporal) diameter on the topological charges of generated STB vortices. c Same as (a) but for generated STLG vortices with radial and angular mode numbers of [\(m=0\), \(\ell=10\)], [\(m=2\), \(\ell=10\)], and [\(m=0\), \(\ell=\pm9\)], respectively. In (c), the intensity distributions of different STLG vortices at \(x=0\) and \(\tau=0\) are plotted with yellow solid lines for experimental and white dashed for theoretical. In (a, c), the yellow dashed lines in the reconstructed phases highlight the characteristic ST spiral phases of the generated STOVs in the \(x-\tau\) plane, indicating the transverse OAM. d The measured temporal symmetric evolution of the generated STLG vortex [\(m=0\), \(\ell=10\)] across a propagation distance of \(\Delta z=200\) mm.
