Affiliation: | 1. Department of Physics, University College of Engineering, Anna University, Dindigul, 624 622, India 2. PG and Research Department of Physics, Arulanandar College, Karumathur, 625514, Tamil Nadu, India 3. Division of Electronics and Electrical Engineering, Dongguk University, Seoul, 100-715, Republic of Korea 4. Millimeter-Wave Innovation Technology Research Center (MINT), Dongguk University, Seoul, 100-715, Republic of Korea 5. Department of Physics, Periyar Maniammai University, Vallam, Thanjavur, 613403, Tamil Nadu, India 6. Department of Physics, Sree Sevugan Annamalai College, Devakottai, 630303, Tamil Nadu, India
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