1. Institute of Physical Biology, South Bohemia University, Nove Hrady 37333, Czech Republic
2. School of Microelectronic Engineering, University Malaysia Perlis (UniMAP), Block A, Kompleks Pusat Pengajian, 02600 Arau Jejawi, Perlis, Malaysia
3. School of Electrical and Computer Engineering, Purdue University, West Lafayette, 47907 Indiana, United States
4. Electrical Engineering Department, Technical University of Czestochowa, Al.Armii Krajowej 17/19, Czestochowa, Poland
5. Physics Department, Indian Institute of Technology Kanpur, Kanpur (UP) 208016, India
6. National Physical Laboratory Dr. K S Krishnan Marg, New Delhi 110012, India