| Affiliation: | 1. Department of Physics, JNT University, Anantapuramu 515002, India;2. Department of Physics, SSBN Degree & PG College, Anantapuramu 51500, India;3. Department of Physics, RGM College of Engineering & Technology, Nandyal 518501, India;4. Laser Applications Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam;5. Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam;6. Department of Physics, Sri Venkateswara University, Tirupati 517502, India;7. Department of Physics, Koneru Lakshmaiah Education Foundation, Guntur 522502, India |
