Svilen Sabchevski | Dynamical Systems | Best Researcher Award

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Prof. Svilen Sabchevski | Dynamical Systems | Best Researcher Award

Head of Laboratory Plasma Physics and Engineering at Institute of Electronics of the Bulgarian Academy of Sciences, Bulgaria

Prof. Svilen Sabchevski 🎓, Associate Professor and Head of Laboratory at the Institute of Electronics, Bulgarian Academy of Sciences 🇧🇬, is a globally recognized expert in physical electronics, plasma physics, and terahertz (THz) science 🌐⚡. With a PhD in Physics and an MSc in Electronic Engineering (summa cum laude) 🧪📘, he has authored over 110 publications, including high-impact journal articles, book chapters, and patents 📚🔬. His pioneering research in gyrotron technologies supports applications in nuclear fusion, advanced spectroscopy, and medical imaging 🚀🏥. With 2,000+ citations and an h-index of 25 📈, Prof. Sabchevski leads major international collaborations across Europe and Asia. As a scientific editor, project coordinator, and THz technology advocate, he stands as a leading force in computational modeling and high-power electron-beam systems 💡👨‍🔬.

Professional Profile 

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🎓 Education

Prof. Svilen Sabchevski holds an MSc in Electronic Engineering (Electron Devices) from St. Petersburg State Electrotechnical University, graduating summa cum laude 🏅. He earned his Ph.D. in Physics from the Institute of Electronics at the Bulgarian Academy of Sciences (IE-BAS) in 1991 🧪. His academic foundation is deeply rooted in electron-device physics, laying the groundwork for his impactful research in plasma and physical electronics. His education combined rigorous theoretical grounding with strong applied engineering expertise, shaping his future trajectory in high-frequency radiation systems, gyrotrons, and THz technology ⚙️📡. This elite academic background has empowered him to lead complex research projects, engage in international collaborations, and contribute transformative work to the field of computational and experimental electron-beam physics 🌍🧠.

🏢 Professional Experience

Prof. Sabchevski is currently Head of the Plasma Physics and Engineering Laboratory at IE-BAS 🏛️, where he leads advanced research in gyrotron development, electron optics, and THz radiation. Over the past five years, he has served as visiting professor and scientist in prestigious institutions across Japan 🇯🇵, Germany 🇩🇪, and Switzerland 🇨🇭, collaborating on next-generation electron-beam technologies. His leadership roles in bilateral and global research initiatives, including the International Consortium for High-Power THz Science & Technology, have established him as a leading innovator in the field 🚀🌐. With more than three decades of experience in physical modeling, software development, and experimental science, Prof. Sabchevski blends academic depth with engineering prowess to pioneer cutting-edge solutions in applied radiophysics and nuclear fusion systems ⚡👨‍🔬.

🔬 Research Interest

Prof. Sabchevski’s research is centered on physical electronics, intense electron beams, and terahertz (THz) science 🔬📡. He specializes in the development of gyrotrons for controlled thermonuclear fusion reactors, advanced diagnostics, and high-resolution imaging systems for technological and medical use 🧲💉. Additional areas include computational physics, CAD-based system optimization, and nonlinear dynamics of high-power electron-optical devices. He has significantly contributed to the understanding of mode interaction in gyro-devices and the generation of coherent THz radiation, crucial for spectroscopy and plasma heating 💥📈. His expertise also spans peniotron technologies and ECR-based microwave sources. By integrating theory, simulation, and practical experimentation, Prof. Sabchevski leads groundbreaking research with global scientific and industrial impact 🌍💡.

🏅 Awards and Honors

Prof. Sabchevski has earned widespread acclaim for his research excellence, international collaborations, and contributions to scientific communities 🎖️🌟. He serves on the editorial boards of prestigious journals such as Journal of Infrared, Millimeter, and Terahertz Waves (Springer) and Advances in Modern Oncology Research 📘🖋️. As editor of the International THz Consortium Newsletter and website, he has championed global efforts to advance THz science and technology. His research has been recognized in Bulgaria and internationally, including funding and leadership in bilateral projects with France and Japan 🧭🇫🇷🇯🇵. With over 2,000 citations and an H-index of 25, his scientific influence continues to grow. His dedication and visionary leadership make him a true ambassador of high-power THz technology and academic excellence 🔭💫.

🛠️ Research Skills

Prof. Sabchevski brings a rare combination of theoretical expertise, software development, and hands-on experimental capability 🔍🧮. He is a specialist in simulation-driven research, developing custom software packages for modeling electron beams, gyrotrons, and THz systems. His skillset includes electromagnetic theory, nonlinear wave interaction, CAD optimization, and plasma diagnostic techniques 📡🛠️. He excels in both frequency- and time-domain analysis of complex systems and is highly experienced with international research protocols and large-scale scientific instrumentation ⚙️🧪. His ability to conceptualize, simulate, and validate gyro-devices places him among the leading figures in modern terahertz science. These interdisciplinary strengths have enabled him to work on frontier applications in fusion energy, spectroscopy, and biomedical imaging 🌐📊.

📝Publications Top Note

  • Title: Development and applications of high-frequency gyrotrons in FIR FU covering the sub-THz to THz range
    Authors: T. Idehara, S.P. Sabchevski
    Year: 2012
    Citations: 122
    Source: Journal of Infrared, Millimeter, and Terahertz Waves, 33(7), 667–694

  • Title: A high harmonic gyrotron with an axis-encircling electron beam and a permanent magnet
    Authors: T. Idehara, I. Ogawa, S. Mitsudo, Y. Iwata, S. Watanabe, Y. Itakura, K. Ohashi, S.P. Sabchevski, et al.
    Year: 2004
    Citations: 121
    Source: IEEE Transactions on Plasma Science, 32(3), 903–909

  • Title: Development of THz gyrotrons at IAP RAS and FIR UF and their applications in physical research and high-power THz technologies
    Authors: M.Y. Glyavin, T. Idehara, S.P. Sabchevski
    Year: 2015
    Citations: 120
    Source: IEEE Transactions on Terahertz Science and Technology, 5(5), 788–797

  • Title: Novel and emerging applications of the gyrotrons worldwide: Current status and prospects
    Authors: S. Sabchevski, M. Glyavin, S. Mitsudo, Y. Tatematsu, T. Idehara
    Year: 2021
    Citations: 115
    Source: Journal of Infrared, Millimeter, and Terahertz Waves, 42(7), 715–741

  • Title: The gyrotrons as promising radiation sources for THz sensing and imaging
    Authors: T. Idehara, S.P. Sabchevski, M. Glyavin, S. Mitsudo
    Year: 2020
    Citations: 102
    Source: Applied Sciences, 10(3), 980

  • Title: Direct observation of the hyperfine transition of ground-state positronium
    Authors: T. Yamazaki, A. Miyazaki, T. Suehara, T. Namba, S. Asai, T. Kobayashi, et al.
    Year: 2012
    Citations: 99
    Source: Physical Review Letters, 108(25), 253401

  • Title: Porous silica derived from sago waste and its application for SiO₂/C composites in aluminum-air batteries
    Authors: H. Aripin, S. Sutisna, E. Priatna, I.N. Sudiana, E. Surahman, S. Sabchevski
    Year: 2022
    Citations: 4
    Source: International Journal of Electrochemical Science, 17(12), 221221

  • Title: Modelling, simulation and CAD of gyrotrons for high-power terahertz science and technologies
    Authors: S. Sabchevski, T. Idehara, M. Damyanova, I. Zhelyazkov, E. Balabanova, et al.
    Year: 2018
    Citations: 4
    Source: Journal of Physics: Conference Series, 992(1), 012001

  • Title: Beam–wave interaction from FEL to CARM and associated scaling laws
    Authors: E. Di Palma, G. Dattoli, E. Sabia, S. Sabchevski, I. Spassovsky
    Year: 2017
    Citations: 4
    Source: IEEE Transactions on Electron Devices, 64(10), 4279–4286

  • Title: Current status of the development of the problem-oriented software package GYREOSS
    Authors: M. Damyanova, S. Sabchevski, I. Zhelyazkov, E. Vasileva, E. Balabanova, et al.
    Year: 2014
    Citations: 4
    Source: Journal of Physics: Conference Series, 514(1), 012056

🌍📈Conclusion

Prof. Svilen Sabchevski stands as a globally respected scientist and research leader in the realm of high-frequency electron-beam systems and terahertz technologies 🌍📈. With over 110 publications, 2,000+ citations, and an influential editorial and research presence, he exemplifies the qualities of a visionary academic and innovative engineer 📚👨‍🔬. His deep expertise, collaborative spirit, and commitment to advancing THz science across disciplines and continents make him an outstanding candidate for honors like the Best Researcher Award 🏆. Continuously contributing to scientific knowledge, mentoring emerging scholars, and solving global challenges through cutting-edge research, Prof. Sabchevski’s impact reaches far beyond borders—illuminating the future of radiophysics, fusion energy, and medical technology 🚀💡.

Thoraya Alharthi | Dynamical Systems | Best Researcher Award

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Dr. Thoraya Alharthi | Dynamical Systems | Best Researcher Award

University of Bisha, Saudi Arabia

Dr. Thoraya Namesh Alharthi is an accomplished mathematician with over 11 years of academic and research experience, currently serving as an Assistant Professor at Bisha University, Saudi Arabia. She holds a Ph.D. in Mathematics from the University of Exeter (2023), a Master’s degree with honors from Taif University (2016), and a Bachelor’s degree with honors from King Khalid University (2011). Her research focuses on nonlinear dynamical systems, bifurcation theory, chaotic dynamics, and tipping points in forced systems—areas with significant theoretical and applied relevance. Dr. Alharthi has actively participated in prestigious international conferences across the UK, France, and the USA, presenting her work and engaging with the global research community. She is known for her creativity, commitment to continuous development, and dedication to volunteering. With strong academic credentials, international exposure, and a passion for innovative mathematics, Dr. Alharthi represents a promising researcher making meaningful contributions to the field.

Professional Profile 

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Education

Dr. Thoraya Namesh Alharthi has pursued an exemplary academic journey marked by distinction and dedication to mathematics. She earned her Ph.D. in Mathematics in 2023 from the University of Exeter, United Kingdom, where she deepened her expertise in nonlinear dynamical systems and related fields. Prior to her doctoral studies, she completed her Master’s degree in Mathematics with Excellent with Honors in 2016 at Taif University, Saudi Arabia. Her academic journey began with a Bachelor’s degree in Mathematics from King Khalid University in 2011, where she also graduated with Excellent with Honors. Her consistent academic excellence across all levels reflects her commitment to mastering mathematical theory and its applications. Dr. Alharthi’s education spans both national and international institutions, equipping her with a broad, interdisciplinary, and global perspective that enriches her research and teaching endeavors in the field of mathematics.

Professional Experience

Dr. Alharthi brings over 11 years of professional experience in higher education, holding various academic positions across prominent Saudi institutions. She is currently serving as an Assistant Professor of Mathematics at Bisha University, where she contributes to both teaching and research in advanced mathematical topics. Prior to her current role, she worked as a Lecturer and Teaching Assistant at King Khalid University and later at Bisha University. Her professional trajectory demonstrates a progressive rise through academic ranks, showcasing her ability to balance instructional duties with research activities. She is recognized for her effective teaching methodologies, mentorship, and dedication to student development. In addition to her university roles, Dr. Alharthi has actively participated in workshops and seminars to enhance her academic and pedagogical skills. Her professional experience reflects a deep commitment to mathematics education, continuous learning, and fostering academic excellence in her students and peers alike.

Research Interest

Dr. Thoraya Alharthi’s research interests lie at the forefront of theoretical and applied mathematics. Her primary focus is on nonlinear dynamical systems, with special emphasis on bifurcation theory, chaotic dynamics, and nonautonomous systems. She is particularly interested in the mathematical modeling of real-world phenomena, including tipping points in forced systems, a concept relevant to climate science, ecological transitions, and engineering systems. Dr. Alharthi investigates the behavior of complex systems under various conditions, aiming to uncover the underlying structures and instabilities that lead to qualitative shifts in system dynamics. Her work incorporates both analytical and numerical approaches, demonstrating a balance of theoretical rigor and computational modeling. Through her active participation in international conferences and seminars, she continues to engage with current developments in the global research landscape. Her research contributes meaningfully to understanding critical transitions in nonlinear systems, an area with broad interdisciplinary and practical implications.

Awards and Honors

Throughout her academic career, Dr. Thoraya Alharthi has consistently demonstrated excellence, earning recognition and honors that reflect her outstanding contributions. While specific named awards are not detailed in the provided information, her academic achievements speak volumes—graduating with Excellent with Honors in both her Bachelor’s and Master’s programs highlights her intellectual rigor and commitment. Her successful admission and completion of a Ph.D. program at the University of Exeter, a globally respected institution, further illustrates her exceptional academic capability and research potential. Moreover, her participation in prestigious international conferences, including Dynamics Days (UK, France, USA), BMC-BAMC in Glasgow, and other specialized mathematical workshops, positions her as a globally engaged researcher. These platforms are competitive and academically demanding, signifying peer recognition of her research. Her commitment to professional development, continuous learning, and global academic exchange further underscores her status as a rising scholar in mathematics.

Conclusion

Dr. Thoraya Namesh Alharthi is a dedicated and forward-thinking mathematician with a strong academic foundation, extensive teaching experience, and an active research portfolio. Her work in nonlinear dynamical systems and bifurcation theory holds significance for both pure and applied mathematics. With over a decade of academic service, she has built a reputation for intellectual rigor, collaborative spirit, and a passion for continuous development. Her active engagement in international academic forums enhances the visibility and impact of her work, while her personal values—volunteering, perseverance, and creativity—add depth to her professional identity. Although further documentation of her publications and awards would bolster her academic profile, Dr. Alharthi’s trajectory suggests a promising future. She stands as a strong candidate for recognition through prestigious awards such as the Best Researcher Award, symbolizing the next generation of scholars committed to advancing mathematical knowledge and contributing to global scientific challenges.

Publications Top Notes

  • “Hidden-like Attractors in a Class of Discontinuous Dynamical Systems”

    • Authors: Hany A. Hosham, Mashael A. Aljohani, Eman D. Abou Elela, Nada A. Almuallem, Thoraya N. Alharthi​MDPI+1AIMS Press+1

    • Year: 2024​MDPI

    • Citation: Hosham, H.A., Aljohani, M.A., Abou Elela, E.D., Almuallem, N.A., & Alharthi, T.N. (2024). Hidden-like Attractors in a Class of Discontinuous Dynamical Systems. Mathematics, 12(23), 3784.​MDPI

    • Source: https://www.mdpi.com/2227-7390/12/23/3784

  • “A Class of Discontinuous Systems Exhibit Perturbed Period Doubling Bifurcation”

    • Authors: Hany A. Hosham, Alaa A. Alzulaibani, Tarek Sellami, Khaled Sioud, Thoraya N. Alharthi​AIMS Press

    • Year: 2024​

    • Citation: Hosham, H.A., Alzulaibani, A.A., Sellami, T., Sioud, K., & Alharthi, T.N. (2024). A Class of Discontinuous Systems Exhibit Perturbed Period Doubling Bifurcation. AIMS Mathematics, 9(9), 25098-25113.​

    • Source: https://www.aimspress.com/article/doi/10.3934/math.20241223

  • “Vaccination Strategies in a Stochastic SIVR Epidemic Model”

  • “A Study of Dynamical Features and Novel Soliton Structures of Complex-Coupled Maccari’s System”

    • Authors: N. Abbas, A. Hussain, M. Bakouri, T.N. Alharthi, I. Khan​

    • Year: 2025​

    • Citation: Abbas, N., Hussain, A., Bakouri, M., Alharthi, T.N., & Khan, I. (2025). A Study of Dynamical Features and Novel Soliton Structures of Complex-Coupled Maccari’s System. AIMS Mathematics, 10(2), 3025-3040.​

    • Source: https://www.aimspress.com/article/doi/10.3934/math.2025204

  • “Bifurcation and Chaos in Simple Discontinuous Systems Separated by a Hypersurface”