Affiliation: | 1. Department of Physics, The Hindu College, Krishna University, Machilipatnam, India;2. ARL-LC, Department of Electronics and Communication Engineering, Koneru Lakshmaiah Education Foundation, Guntur, Indiahttps://orcid.org/0000-0002-6893-6978;3. Department of Physics, Andhra Loyola College, Vijayawada, India;4. Department of Physics, ANR College, Gudivada, India;5. Department of Physics, The Hindu College, Krishna University, Machilipatnam, Indiahttps://orcid.org/0000-0003-2713-6285 |