Generation and characterization of annular PSTOVs with varying topological charges (IMAGE)

Editorial Office of Opto-Electronic Journals Group

Generation and characterization of annular PSTOVs with varying topological charges

Caption

Fig. 1 | Generation of perfect spatiotemporal optical vortice (PSTOV) pulses with annular profiles. (a–d) Experimental results of annular PSTOV pulses with topological charges ℓ = 2, 4, 6 and 8, respectively. The results in each panel include the intensity distribution in the x–t plane (top left), the phase distribution in the x–t plane (bottom left), and the 3D iso-intensity profile (right). (e, f) Dependence of the spatial and temporal radii on the topological Charge ℓ. (Sim.: simulated results, Exp.: experimental results). 

Credit

Professor Ting Mei from Northwestern Polytechnical University, China, and Associate Professor Yuquan Zhang from Shenzhen University, China | Image Source: https://www.oejournal.org/oes/article/doi/10.29026/oes.2026.250041

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