1. PG and Research Department of Physics; Arul Anandar College; Karumathur Madurai India
2. Advanced Functional Materials and Optoelectronic Laboratory (AFMOL), Department of Physics, Faculty of Science; King Khalid University; PO Box 9004 Abha Saudi Arabia
3. Millimeter-Wave Innovation Technology Research Centre (MINT); Dongguk University; Seoul 04620 South Korea