1. PG and Research Department of PhysicsBishop Heber College (Autonomous) Tiruchirappalli 620017 India
2. Department of PhysicsSt. Joseph's College (Autonomous) Tiruchirappalli 620 001 India
3. Advanced Centre of Research in High Energy Materials (ACRHEM)University of Hyderabad Hyderabad 500046, Telangana India
4. Department of PhysicsMadurai Kamarajar University Madurai 625021 India
5. Nanophotonics Laboratory, Department of PhysicsBharathidasan University Tiruchirappalli 620024 India