1. Department of Physics, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
2. Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, West Bengal, India
3. Department of Physics, Jadavpur University, Kolkata, India
4. Department of Physics, Rabindranath Tagore University, Hojai, Assam, India
5. Institute of Physics, Federal University of Mato Grosso, Cuiaba, Brazil
6. School of Electrical and Electronics Information Engineering, Hubei Polytechnic University, Huangshi, Hubei, China