1. R&D Centre, Bharathiyar University , Coimbatore, Tamil Nadu, India
2. Department of Science, MES College of Engineering , Kuttippuram 679573, Kerala, India
3. Department of Physics, Sri Ramakrishna Mission Vidhyalaya College of Arts and Science , Coimbatore 641020, India
4. Department of Physics, BR Ambedkar Bihar University , Muzaffarpur 842001, Bihar, India
5. Civil and Architectural Engineering, Tennessee State University , Knoxville TN, USA