1. Southern Scientific Center of the Russian Academy of Sciences,Laboratory of Physics and Technology of Semiconductor Nanoheterostructures for Microwave Electronics and Photonics Federal Research Center,Rostov-on-Don,Russia
2. South-Russian State Polytechnic University named after M.I. Platova,Institute for Fundamental Engineering Education,Novocherkassk,Russia
3. North Caucasus Federal University,Physics and Technology Faculty,Stavropol,Russia
4. North Caucasus Federal University,Institute of Engineering,Stavropol,Russia