1. Vilnius University, Laser Research Center; Department of Quantum Electronics, Physics Faculty; Saulėtekio Ave. 10 LT-10223 Vilnius Lithuania
2. Swinburne University of Technology, Centre for Micro-Photonics; Faculty of Engineering and Industrial Sciences; Hawthorn VIC 3122 Australia
3. Melbourne Centre for Nanofabrication (MCN); Australian National Fabrication Facility (ANFF); Clayton VIC 3168 Australia