READ ME File For 'Dataset supporting the publication 'Nondiffracting supertoroidal pulses and optical Karman vortex streets''

Dataset DOI: 10.5258/SOTON/D3058

Date that the file was created: June, 2024

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GENERAL INFORMATION
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ReadMe Author: Nikitas Papasimakis, University of Southampton 
ReadMe Author: Yijie Shen, Nanyang Technological University [https://orcid.org/0000-0002-6700-9902]


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SHARING/ACCESS INFORMATION
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Licenses/restrictions placed on the data, or limitations of reuse: Creative Commons Attribution 4.0



This dataset supports the publication:
"Nondiffracting supertoroidal pulses and optical Karman vortex streets" by Y. Shen, N. Papasimakis, and N. I. Zheludev in Nature Communications 2024.

Prof Yijie shen  
yijie.shen@ntu.edu.sg 
[https://orcid.org/0000-0002-6700-9902]

Authors
Y. Shen
N. Papasimakis,
N. I. Zheludev 

Journal Nature Communications 2024.



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DATA & FILE OVERVIEW
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This dataset contains:

- Fig. 1 presents plots of the spatial profiles of the real parts of electric fields of two NDSTP  pulses of (q1,q2,q3)=(1,40,Inf) and (q1,q2,q3)=(1,100,1) evolved at t = 0 and ±q2/(2c).
- Fig. 2a presents plots of the spatial profiles of the real parts of electric fields of the NDSTP pulse of (q1,q2,q3)=(1,100,20) evolved at t = 0 and ±q2/(2c).
- Fig. 2b The evolution of pulse width in the transverse upon propagation for different q3 values.
- Fig. 2c-f The spatiotemporal evolution of the pulses with various q3/q1 values of 50, 20, 5, and 1, respectively.
- Fig. 3a The electric field of a supertoroidal pulse evolving with propagation versus the time at t = 0, ±q2/(4c), and ±q2/(2c).
- Fig. 3b The electric field of a NDSTP pulse evolving with propagation versus the time at t = 0, ±q2/(4c), and ±q2/(2c).
- Fig. 4 Magnetic field and Poynting vector distributions of a NDSTP with (q1,q2,q3)=(1,100,1) at t = 0.
- Fig. 6 Fourier transform results of a supertoroidal pulse and a NDSTP pulse.

File list:
- Fig1acode.txt: The MATLAB code to generate data in Fig.1a and Fig.3a.
- Fig1bcode.txt: The MATLAB code to generate data in Fig.1b and Fig3b.
- Fig2code.txt: The MATLAB code to generate data in Fig.2.
- Fig2a.mat: 1601x801 matrix containing the values of electric field in Fig2a.
- Fig6code.txt: The MATLAB code to generate data in Fig.6.
- FDb.m: The MATLAB function used for running codes.
- Mymap.mat: The colormap date used for plotting in MATLAB codes.




Related projects: 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. Y.S. thanks the support of a start grant from Nanyang Technological University and Singapore Ministry of Education (MOE) AcRF Tier 1 grant (RG157/23).