[1] Univ Naples Parthenope, Dept Engn, I-80143 Naples, Italy
[2] Natl Inst Laser Plasma & Radiat Phys, Ctr Adv Laser Technol CETAL, RO-077125 Magurele, Romania
[3] Warsaw Univ Technol, Inst Microelect & Optoelect, PL-00662 Warsaw, Poland
[4] Horia Hulubei Natl Inst R&D Phys & Nucl Engn, RO-077125 Magurele, Romania