Shewa Getachew | High energy physics | Editorial Board Member

Mr. Shewa Getachew | High energy physics | Editorial Board Member

Lecturer at Wolkite University | Ethiopia

Shewa Getachew Mamo is a dedicated Physics Lecturer and researcher with a specialized focus on optical properties of nanocomposites, material science, refractive index, and group velocity. Passionate about advancing scientific knowledge, he is committed to both academic excellence and innovative research in the realm of condensed matter physics. His expertise extends to investigating local field enhancements, optical properties of nanostructures, and exploring nanoparticle-based materials and geometries.

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Early Academic Pursuits 🎓

Shewa’s academic journey began at Wolkite University, where he earned his Bachelor’s degree in Physics (2016-2019) and later pursued a Master’s degree in Condensed Matter Physics (2022-2023). Throughout his education, he developed a strong foundation in experimental and theoretical physics, which propelled him into a career of teaching and research in the field.

Professional Endeavors 💼

Currently, Shewa serves as a Physics Teacher at Wolkite University (since December 2023). In this role, he is responsible for preparing and presenting undergraduate and sometimes postgraduate courses in various areas of physics, including mechanics, electromagnetism, thermodynamics, quantum mechanics, and material science. He plays a vital role in designing curricula, developing lesson plans, and selecting relevant textbooks to ensure effective learning outcomes. His academic influence extends to advising students on academic matters and guiding them through research projects.

Contributions and Research Focus 🔬

Shewa’s research focus is primarily on the optical properties of core-shell spherical nanocomposites and local field enhancements. His research aims to explore the interaction between optical fields and nanocomposites, as well as investigating the influence of depolarization on the local field enhancement factor in passive and active composites with pure metal spheroidal nanoinclusions. One of his notable research areas includes optical bistability in nanoparticle composites and the role of tunable dielectric cores in cylindrical core-shell nanocomposites.

Impact and Influence 🌍

Shewa’s research has led to significant contributions to the field of material science and nanotechnology, specifically in understanding the optical properties of nanostructured materials. His findings have been widely discussed in the scientific community, with numerous publications in prominent journals. He is committed to staying updated with the latest advancements in condensed matter physics and nanotechnology, consistently striving to push the boundaries of existing scientific knowledge.

Academic Cites 📚

Shewa’s work has been widely cited, with his contributions being recognized across several prestigious journals. His publications include studies such as:

  • Tsegaye, A., & Getachew, S. (2024). “Investigation Optical Properties of ZnTe@Ag Core-Shell Spherical Nanocomposites Within Varies Dielectric Host Matrices”. Advances in Materials, 13(4), 80-91.
  • Getachew, S. (2024). “Effect of Tunable Dielectric Core on Optical Bistability in Cylindrical Core-Shell Nanocomposites”. Advances in Condensed Matter Physics, 2024(1), 9911970.
  • Getachew, S. (2024). “Investigation of Refractive Index and Group Velocity Metal Coated Dielectric Spherical Nanocomposites”. Iranian Journal of Physics Research, 24(3), 75-87.

His academic citations are a testament to his research impact and scientific contributions.

Research Skills 🔍

Shewa possesses advanced knowledge in condensed matter physics, with strong analytical and problem-solving skills. He is proficient in a range of experimental and theoretical physics techniques. His technical expertise includes programs such as Matlab, Word, Excel, PowerPoint, OpenOffice, and Latex, and he is skilled in computer languages like Python, Fortran, and Gnuplot. He also has experience with Unix systems and software like xmgrace, showcasing his comprehensive research toolset.

Teaching Experience 📘

Shewa’s teaching experience is extensive, having taught various physics courses at the undergraduate and postgraduate levels. He designs engaging lesson plans and works closely with students to help them grasp key concepts in physics. By preparing and grading exams, assignments, and laboratory reports, he ensures students receive constructive feedback for their academic growth. His role as a mentor goes beyond the classroom, advising students on their academic and career paths and supervising their research projects.

Legacy and Future Contributions 🌱

Shewa is committed to leaving a lasting legacy in the fields of nanotechnology, material science, and condensed matter physics. His ongoing research will likely continue to make valuable contributions to the understanding of optical properties and nanocomposite materials. Looking ahead, Shewa is dedicated to mentoring the next generation of scientists and physicists, sharing his knowledge and advancing the boundaries of nanophysics and material science research. Through continuous publication and collaboration, his work is set to influence the scientific community for years to come.

Publications Top Notes

Effect of Tunable Dielectric Function of the Core on Optical Bistability in Small Spherical Metal-Dielectric Composite

  • Authors: Hawi Aboma, Shewa Getachew, Sisay Shewamare
    Journal: Ethiopian Journal of Applied Sciences
    Year: 2025

Investigation Optical Properties of ZnTe@Ag Core-Shell Spherical Nanocomposites Within Varies Dielectric Host Matrices

  • Authors: Tsegaye Atnaf, Shewa Getachew
    Journal: Advances in Materials
    Year: 2024

Investigating the Optical Bistability of Pure Spheroidal Nanoinclusions in Passive and Active Host Matrices

  • Authors: Shewa Getachew, Girma Berga
    Journal: Canadian Journal of Physics
    Year: 2024

Investigation of Refractive Index and Group Velocity Metal Coated Dielectric Spherical Nanocomposites Within Passive and Active Dielectric Cores

  • Authors: Shewa Getachew
    Journal: Iranian Journal of Physics Research (IJPR)
    Year: 2024

Effect of Tunable Dielectric Core on Optical Bistability in Cylindrical Core–Shell Nanocomposites

  • Authors: Shewa Getachew, Junjie Li
    Journal: Advances in Condensed Matter Physics
    Year: 2024

 

 

Valeriu Savu | High energy physics | Best Researcher Award

Dr. Valeriu Savu | High energy physics | Best Researcher Award

INOE2000 | Romania

Valeriu Savu is a highly accomplished Technological Development Engineer with an extensive career spanning over 35 years. Currently working at the National Institute of Research and Development for Optoelectronics (INOE2000) in Măgurele, Romania, Savu has demonstrated significant expertise in research and development of electronic modules and optical equipment. His work primarily revolves around lasers, optical fibers, and nanotechnology, and his contributions have been instrumental in advancing applications within telecommunications and military systems.

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Early Academic Pursuits 🎓

Savu’s academic journey began at the Polytechnic Institute of Bucharest, where he obtained a Bachelor’s degree in Electronics and Telecommunications in 1986. Later, he pursued a Master’s degree in Nanostructures and Unconventional Engineering Processes at the Polytechnic University of Bucharest (2012-2014). This was followed by the completion of his PhD in Engineering Sciences in 2007-2014 with a thesis on radio pulse selection and processing. His doctoral work focused on cosmic ray detection, emphasizing advanced methodologies for high-precision data processing in complex environments like saline settings.

Professional Endeavors 💼

Savu’s professional career began in 1990 with the Research Design Institute of Electromechanics ICPEM, where he worked on military electronics systems. From 2000 to 2005, he served as an Engineer at Elettra Communications S.A., contributing to the telecommunications sector with an emphasis on testing and verification of military-grade equipment. Since 2005, Savu has been at INOE2000, leading the Department of Engineering Design and Technology, where he focuses on cutting-edge optical devices and laser systems. His experience spans across the creation of advanced lasers, fiber optics, and sensor technologies for both commercial and military applications.

Contributions and Research Focus 🔬

Valeriu Savu has made notable contributions to several fields, including laser technology, optical fibers, and military electronics. He is an expert in the design, testing, and characterization of laser systems, photovoltaics, and nanostructured materials. One of his major research focuses includes Cherenkov radiation detection and the application of nanotechnology for optical sensing. Savu has been involved in the development of innovative sensors, including UV sensors for organic materials and high-voltage power supplies used in medical laser systems.

Impact and Influence 🌍

Savu’s work has significantly advanced the field of optoelectronics and has been applied in medical, military, and telecommunications sectors. He has also patented several devices, including laser protection systems and cosmic radiation detectors for specialized environments like salt mines. His innovative solutions continue to influence scientific research and engineering practices globally.

Academic Cites 📚

Savu’s scholarly work has earned recognition within the academic community, with numerous scientific articles published in prominent journals. His research has appeared in the Romanian Journal of Physics, Romanian Journal of Biophysics, and other prestigious publications. He has contributed to international conferences and his research papers are frequently cited by peers. Notable academic publications include his studies on the Nd:YAG laser for microsurgical ophthalmology and breast tissue investigation using diffuse optical tomography.

Research Skills 🧑‍💻

Valeriu Savu is highly skilled in experimental research, device testing, and the design of optical systems. He has expertise in advanced signal processing, laser characterization, and system integration. Savu’s proficiency with software tools such as OrCAD, FabMaster, NI Multisim, and OriginLab has made him a highly versatile researcher, capable of modeling complex systems and optimizing experimental designs. His experience spans across lab-based investigations, field tests, and cross-disciplinary applications of advanced technologies.

Teaching Experience 🍏

While Savu’s career has been predominantly research-driven, his extensive academic background and technical expertise have made him a valuable contributor to teaching and training in the field of optoelectronics. He has actively mentored students at various stages of their careers, guiding them through engineering problems and sharing his knowledge of cutting-edge technologies. His role as a PhD advisor and involvement in academic projects has contributed to the development of future scientists and engineers in the optoelectronics field.

Awards and Honors 🏆

Throughout his career, Savu has received various certificates and awards recognizing his contributions to both military and civilian applications. His innovative work has been acknowledged by organizations and research institutions, and he has earned several certificates of innovation for his unique designs and systems. Savu’s patents are a testament to his creative and practical contributions to optical technology and laser applications.

Legacy and Future Contributions 🔮

Savu’s extensive body of work leaves a lasting legacy in the field of optoelectronics, particularly in laser applications, telecommunications, and military technology. His ongoing work in cosmic radiation detectors and laser safety will likely influence future technological advancements in various sectors. As he continues to develop new systems and devices, his future contributions are expected to further shape the landscape of optical technology and engineering research.

Patents and Innovations 💡

Valeriu Savu’s patents reflect his ingenuity and forward-thinking approach to technology. Some of his recent applications include systems for automated discharge protection in laser pumps and power supply disconnect systems. His patents focus on enhancing the safety and efficiency of electronic systems, laser devices, and telecommunications infrastructure, with an emphasis on providing innovative solutions for user protection and optimal performance in real-world applications.

Publications Top Notes

Power Dissipation Reduction System for Adjustable Power Supplies
  • Authors: V Savu, MI Rusu, D Savastru, D Manea
    Journal: Energies
    Year: 2025

Analysis of a high-power laser thermal phenomena induced onto a composite made UAV/drone in flight
  • Authors: D Savastru, V Savu, MI Rusu, M Tautan, A Stanciu
    Journal: Journal of Optoelectronics and Advanced Materials
    Year: 2024

Sampling the travel distance of a vehicle through an unconventional method for data acquisition
  • Authors: MI Rusu, V Savu, D Savastru, CH Gandescu, A Stan, DM Cotorobai
    Journal: Journal of Optoelectronics and Advanced Materials
    Year: 2023

Grating Optic Fiber Sensors Detection of Smart Polymer Composite Delamination
  • Authors: D Savastru, D Savastru, MI Rusu, M Tautan, V Savu, II Lancranjan
    Journal: Optics, Photonics and Lasers
    Year: 2023

Ellipsometric characterization of tungsten oxide thin films, before and after He plasma exposure
  • Authors: MI Rusu, Y Addab, C Martin, C Pardanaud, V Savu, II Lancranjan, …
    Journal: Optoelectronics and Advanced Materials-Rapid Communications
    Year: 2023