Dataset in support of the paper 'Supertoroidal light pulses as electromagnetic skyrmions propagating in free space

This dataset supports the following publication: Shen, Y., Hou, Y., Papasimakis, N. et al. Supertoroidal light pulses as electromagnetic skyrmions propagating in free space. Nat Commun 12, 5891 (2021). https://doi.org/10.1038/s41467-021-26037-w This dataset contains: - Fig. 1 presents plots of the spatial profiles of the real parts of electric fields of Equation (4) of the two pulses of α=1 and α=5 for q2=100q1 and t = 0, ±q2/(4c), and ±q2/(2c). - Fig. 2a-b present plots of the isoline plots of the electric fields of Equation (4) in the x-z plane for the two pulses shown in Fig.1. - Fig. 3a-b present plots of isoline and arrow plots of the magnetic fields of Equations (5,6) in the x-z plane for the two pulses shown in Fig.1. - Fig. 4a-b present plots of contour and arrow plots of the Poynting vector fields in the x-z plane for the two pulses shown in Fig.1. - Fig. 5a-b present plots of the isoline plot of the logarithm distributions of electric and magnetic fields in the x-z plane for for the pulse of the real part of Equations (4-6) for q2=100q1, t = 0, and α=20. - Fig. 6a-b presents the numbers and positions (a and b) of on-axis saddle-singularities of the magnetic field of the pulse in Fig.5 within the range of z 2 [0; 80q1], versus α. The authors acknowledge the supports of the MOE Singapore (MOE2016-T3-1-006), the UKs Engineering and Physical Sciences Research Council (grant EP/M009122/1, Funder Id: http://dx.doi.org/10.13039/501100000266), the European Research Council (Advanced grant FLEET-786851, Funder Id: http://dx.doi.org/10.13039/501100000781), and the Defense Advanced Research Projects Agency (DARPA) under the Nascent Light Matter Interactions program.