Characterization of the electrical and optical properties of a gliding arc tornado device R. Barni, P. Alex, A. Salanti, C. Canevali, L. Zoia, M. Orlandi and C. Riccardi Eur. Phys. J. D, 75 5 (2021) 147 Published online: 03 May 2021 DOI: 10.1140/epjd/s10053-021-00121-8