Dr. Vishnu Saraswat is an Assistant Professor in the Department of Electronics and Communication Engineering at SR University, Warangal, Telangana, India. He holds a Ph.D. in Physics from Banaras Hindu University, specializing in Experimental Condensed Matter Physics and Materials Science. His research focuses on the synthesis, processing, and characterization of chalcogenide semiconductors, functional materials, and thin films, with particular emphasis on phase-change memory, resistive switching, dielectric and electrical transport, optical properties, and radiation-shielding materials. He has authored 18 peer-reviewed international journal articles, including 11 as first author, contributed three book chapters published by or associated with CRC Press and Wiley, and holds two Indian patent applications, one of which has been granted. He has received the Best Presentation Award at NSRS 2025, IIT Kanpur, and qualified CSIR–UGC NET with Junior Research Fellowship. His academic responsibilities include teaching and coordinating courses in Nanomaterials and Nanotechnology, Semiconductor Physics, Microelectronics, and Electromagnetic Waves, alongside academic administration and research supervision of Ph.D. scholars and undergraduate students. His broader research interests include advanced non-volatile memory devices, semiconductor technology, nanotechnology, optical materials, thermoelectrics, and functional materials for radiation protection.