1. Department of Physics and Electrotechnics, National University of Architecture and Construction of Armenia, 105 Teryan Street, 0009 Yerevan, Armenia
2. Department of Mechanical Engineering, State Engineering University of Armenia, 105 Teryan Street, 0009 Yerevan, Armenia
3. Department of Molecular Physics, Faculty of Physics, Yerevan State University, 1 Alex Manoogian Street, 0025 Yerevan, Armenia
4. Department of Biophysics, Faculty of Biology, Yerevan State University, 1 Alex Manoogian Street, 0025 Yerevan, Armenia