1. Department of Engineering, University of Naples “Parthenope”, Naples, Italy
2. National Institute Laser, Plasma and Radiation Physics, Center for Advanced Laser Technologies (CETAL), Magurele, Romania
3. Institute of Microelectronics and Optoelectronics, Warsaw University of Technology, Warszawa, Poland
4. “Horia Hulubei” National Institute for R&D in Physics and Nuclear Engineering, Magurele, Romania