1. Sensor Laboratory, Department of Information Engineering, University of Brescia, Via Valotti 9, 25133 Brescia, Italy
2. CNR, National Institute of Optics, Via Branze 45, 25123 Brescia, Italy
3. Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
4. CNR, Institute of Condensed Matter Chemistry and Technologies for Energy, Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy
5. The Tashkent State Technical University, Universitetskaya 2, 100069 Tashkent, Uzbekistan