Head of Laboratory, Institute of Photonic Technologies, Federal Research Centre "Crystallography and Photonics" Russian Academy of Sciences, 2, Pionerskaya str., Moscow, Troitsk 108840, Russia
Dr. Vladimir K. Popov
Head of Laboratory, Institute of Photonic Technologies, Federal Research Centre "Crystallography and Photonics" Russian Academy of Sciences, 2, Pionerskaya str., Moscow, Troitsk 108840, Russia