Prof. Rishi Kumar Tiwari | Physics | Best Researcher Award

Published on by Physicist Particle

Prof. Rishi Kumar Tiwari | Physics | Best Researcher Award

Professor at Govt. Model Science College, Rewa (M.P.), India

Dr. Rishi Kumar Tiwari is a distinguished Professor of Mathematics with over 30 years of academic service, currently holding a post secured through the Madhya Pradesh Public Service Commission (2011). He earned his Ph.D. in Mathematics from A.P.S. University, Rewa, in 1998, following an M.Sc. with a Gold Medal. With a prolific research portfolio including 134 national and international publications and six authored books, he has supervised 21 Ph.D. scholars and continues to guide research in cosmology, general relativity, and differential geometry. Dr. Tiwari has presented his work globally, including in Italy, Germany, and South Africa, contributing to international scientific collaborations. His accolades include the DST-ICTP Fellowship (Italy), IASc-INSA-NASI Summer Research Fellowship, and the Shikshavid Samman (2023). Having served as Head of Departments and on multiple academic boards, Dr. Tiwari remains committed to advancing mathematics through education, research, and international cooperation in theoretical physics and cosmology.

Professional Profile 

Education 

Dr. Rishi Kumar Tiwari holds a strong academic background in science and mathematics. He completed his Higher Secondary education from the Board of Secondary Education, Bhopal, in 1985 with a focus on Physics, Chemistry, and Mathematics. He earned his B.Sc. from A.P.S. University, Rewa, in 1988, and later completed his M.Sc. in Mathematics from the same university in 1990, earning an outstanding, which earned him a Gold Medal. He was awarded a Ph.D. in Mathematics from A.P.S. University in 1998. His doctoral work laid the foundation for a research career focused on general relativity, cosmological modeling, and tensor analysis. Dr. Tiwari’s academic credentials reflect a consistent record of academic excellence and deep subject mastery, serving as the cornerstone for his teaching, research, and scholarly contributions to the field of mathematics and cosmology over the last three decades.

Professional Experience 

Dr. Rishi Kumar Tiwari brings with him over 30 years of extensive teaching experience at both undergraduate and postgraduate levels. He has held several significant academic leadership roles, including Head of the Department of Mathematics and Computer Science at Pt. S.N. Shukla University, Shahdol, and formerly at Govt. Model Science College, Rewa. He has also been a member of various Boards of Studies across reputed institutions like A.P.S. University and Govt. T.R.S. College, Rewa. Selected through the M.P. Public Service Commission in 2011, Dr. Tiwari has not only imparted knowledge but also shaped curricula and research agendas. Under his mentorship, 21 Ph.D. scholars have completed their doctorates, with others currently under supervision. His ability to blend deep mathematical theory with modern cosmological applications makes him a respected academic figure in India. He continues to engage students and researchers in exploring advanced topics in mathematical physics.

Research Interest

Dr. Tiwari’s research interest lies primarily in the fields of General Relativity, Cosmology, Tensor Analysis, and Differential Geometry, with a particular emphasis on exploring homogeneous cosmological models and conharmonic curvature tensors. His contributions to understanding the expanding universe and dark energy models have been presented at premier international conferences, including the TAUP Series and the Texas Symposium on Relativistic Astrophysics. With 134 research papers in reputed journals and conferences, Dr. Tiwari has carved a niche in the academic study of mathematical models underpinning astrophysical phenomena. His involvement in UGC-funded research projects on Bianchi Models and Robertson-Walker cosmologies illustrates his commitment to foundational and applied research. Collaborating with institutions in South Africa and Europe, he frequently shares findings on time-varying deceleration parameters and symmetry models. His international exposure and research depth continue to influence global discussions on theoretical physics and contribute to the development of cosmological theory.

Award and Honors

Throughout his illustrious career, Dr. Rishi Kumar Tiwari has received several awards and fellowships that affirm his academic excellence and research impact. He was awarded the DST-ICTP Fellowship (Italy, 2008), recognizing his work in mathematical physics. In 2012, he received the prestigious IASc-INSA-NASI Summer Research Fellowship, further solidifying his standing in the Indian scientific community. His most recent recognition, the Shikshavid Samman from the Department of Higher Education, Madhya Pradesh (2023), honors his decades-long contribution to higher education and mentorship in mathematics. Additionally, Dr. Tiwari has received two major UGC research grants for his projects on cosmological models. These accolades, combined with invitations for popular and technical talks at institutions like the University of KwaZulu-Natal and Mangosuthu University in South Africa, showcase his international academic reputation. His dedication to theoretical exploration and student development continues to garner respect and admiration in the fields of mathematics and cosmology.

Publications Top Notes

  • Title: Perfect fluid Bianchi Type-I cosmological models with time varying G and Λ
    Authors: JP Singh, RK Tiwari
    Year: 2008
    Citations: 63
    Source: Pramana – Journal of Physics, Vol. 70 (4), pp. 565–574

  • Title: Bianchi type-I cosmological models with time dependent G and Λ
    Authors: RK Tiwari
    Year: 2008
    Citations: 43
    Source: Astrophysics and Space Science, Vol. 318 (3), pp. 243–247

  • Title: Phase transition of LRS Bianchi type-I cosmological model in f(R,T)f(R, T) gravity
    Authors: RK Tiwari, D Sofuoğlu, VK Dubey
    Year: 2020
    Citations: 42
    Source: International Journal of Geometric Methods in Modern Physics, Vol. 17 (12), Article ID: 2050187

  • Title: Cosmological tests of parametrization q(z)q(z) in FLRW cosmology
    Authors: A Bouali, BK Shukla, H Chaudhary, RK Tiwari, M Samar, G Mustafa
    Year: 2023
    Citations: 41
    Source: International Journal of Geometric Methods in Modern Physics, Vol. 20 (09), Article ID: 2350152

  • Title: Scenario of two-fluid dark energy models in Bianchi type-III Universe
    Authors: RK Tiwari, A Beesham, BK Shukla
    Year: 2018
    Citations: 41
    Source: International Journal of Geometric Methods in Modern Physics, Vol. 15 (11), Article ID: 1850189

  • Title: Cosmological model with variable deceleration parameter in f(R,T)f(R, T) modified gravity
    Authors: RK Tiwari, A Beesham, B Shukla
    Year: 2018
    Citations: 38
    Source: International Journal of Geometric Methods in Modern Physics, Vol. 15 (07), Article ID: 1850115

  • Title: Bianchi type-III cosmological models with gravitational constant G and the cosmological constant Λ
    Authors: JP Singh, RK Tiwari, P Shukla
    Year: 2007
    Citations: 36
    Source: Chinese Physics Letters, Vol. 24 (12), pp. 3325

  • Title: Anisotropic model with decaying cosmological term
    Authors: RK Tiwari, A Beesham
    Year: 2018
    Citations: 33
    Source: Astrophysics and Space Science, Vol. 363 (11), Article: 234

  • Title: Some Robertson-Walker models with time dependent G and Λ
    Authors: RK Tiwari
    Year: 2009
    Citations: 33
    Source: Astrophysics and Space Science, Vol. 321 (2), pp. 147–150

  • Title: Time varying G and Λ cosmology in f(R,T)f(R, T) gravity theory
    Authors: RK Tiwari, A Beesham, R Singh, LK Tiwari
    Year: 2017
    Citations: 31
    Source: Astrophysics and Space Science, Vol. 362 (8), Article: 143

  • Title: Transit cosmological models with domain walls in f(R, T) gravity
    Authors: RK Tiwari, A Beesham, A Pradhan
    Year: 2017
    Citations: 30
    Source: Gravitation and Cosmology, Vol. 23 (4), pp. 392–400

  • Title: Cosmological models with viscous fluid and variable deceleration parameter
    Authors: RK Tiwari, A Beesham, BK Shukla
    Year: 2017
    Citations: 30
    Source: The European Physical Journal Plus, Vol. 132 (1), Article: 20

  • Title: An LRS Bianchi type-I cosmological model with time-dependent Λ term
    Authors: JP Singh, RK Tiwari
    Year: 2007
    Citations: 27
    Source: International Journal of Modern Physics D, Vol. 16 (04), pp. 745–754

  • Title: Cosmographic studies of q(z)q(z) parametrization in f(R,T)f(R, T) framework
    Authors: BK Shukla, A Bouali, H Chaudhary, RK Tiwari, MS Martín
    Year: 2023
    Citations: 24
    Source: International Journal of Geometric Methods in Modern Physics, Vol. 20 (14), Article ID: 2450007

  • Title: Quadratically varying deceleration parameter in f(R,T)f(R, T) gravity
    Authors: RK Tiwari, D Sofuoğlu
    Year: 2020
    Citations: 24
    Source: International Journal of Geometric Methods in Modern Physics, Vol. 17 (10), Article ID: 2030003

Conclusion 

Dr. Rishi Kumar Tiwari stands as a paragon of dedication, intellect, and international engagement in the realm of mathematical sciences. From earning a Gold Medal in his master’s studies to mentoring 21 Ph.D. scholars and producing an expansive body of scholarly work, he exemplifies the ideals of academic leadership. His prolific research, particularly in the areas of general relativity and cosmological modeling, has transcended national borders, earning him respect across continents. Participation in global scientific platforms and collaborations with African and European institutions underline his commitment to knowledge exchange and cross-cultural academic growth. With multiple leadership roles in universities and active contributions to curriculum development and academic governance, Dr. Tiwari continues to shape the future of mathematical education and research in India. His legacy is built not only on research excellence but also on his lifelong mission to inspire, educate, and innovate in the ever-evolving landscape of mathematical physics.

Joshua Benjamin | Physics | Best Researcher Award

Published on by Physicist Particle

Mr. Joshua Benjamin | Physics | Best Researcher Award

Lagos Nigeria at TYDACOMM Nigeria Limited, Nigeria

benjamin, joshua olamide is a dedicated scholar and researcher passionate about space physics, ionospheric studies, and space weather. He holds a first-class degree in pure and applied physics from Ladoke Akintola University of Technology and a distinction in space physics from the African University of Science and Technology. With experience in RF network planning and optimization, teaching, and research, he combines technical expertise with strong analytical skills. Proficient in MATLAB, Microsoft Office, and data analysis tools, he is committed to innovation, leadership, and academic excellence. His research contributes to understanding ionospheric models and their impact on space weather. 🚀📡

Professional Profile

Education & Experience 🎓💼

  • [2022] MSc in Space Physics (Distinction) – African University of Science and Technology 📡
  • [2019] B.Tech in Pure and Applied Physics (First Class) – Ladoke Akintola University of Technology 🔬
  • [2023 – Present] RF Network Planning & Field Test Engineer – TYDACOMM Nigeria Limited 📶
  • [2020 – 2021] NYSC Mathematics & Economics Teacher – Jofegal International School 📚
  • [2018] Internship at Perfect Seven Solar Company – Solar System Maintenance ☀️
  • [2011 – 2012] Mathematics Teacher – Fountain of Knowledge Group of School 📏

Professional Development 📖🔍

benjamin, joshua olamide has actively participated in multiple international colloquiums and workshops related to space science, GNSS, and ionospheric studies. He has certifications in health, safety, and environment (HSE Levels 1-3) and has completed training in soft skills, entrepreneurship, and critical thinking. His involvement in research and development, coupled with hands-on experience in field testing, data collection, and RF network optimization, showcases his versatility. Passionate about academic excellence, he regularly engages in professional training, leadership roles, and mentorship programs to enhance his expertise in space physics and its applications. 🌍🛰️

Research Focus 🔬🌌

benjamin, joshua olamide specializes in ionospheric physics, space weather, and solar-terrestrial interactions. His research explores the global climatological performance of ionospheric models using Swarm satellite electron density measurements, evaluating their accuracy and implications for GNSS and communication systems. He has worked on latitudinal electron density profiles, comparing SWARM measurements with IRI models, and studying biophysics applications. His goal is to improve predictive models for space weather impacts on Earth, ensuring the safety and reliability of communication and navigation technologies. His research contributes to scientific advancements in space physics and atmospheric studies. 🌞🌍📡

Awards & Honors 🏆🎖️

  • [2022] Best Graduating Student – Institute of Space Science and Engineering 🏅
  • [2022] Best Graduating Student – Department of Space Physics 🏆
  • [2019] Akinrogun Trust Fund Award 💰
  • [2019] Best WAEC Result – New Era High School 🏅
  • [2007] One of the Best Junior WAEC Results – Greater Tomorrow College 🎓

Publication Top Notes

  1. “Investigation of the global climatologic performance of ionospheric models utilizing in-situ Swarm satellite electron density measurements”
    This paper was published in Advances in Space Research, Volume 75, Issue 5, pages 4274-4290, in 2025. The authors are:

    • D. Okoh
    • C. Cesaroni
    • J.B. Habarulema
    • Y. Migoya-Orué
    • B. Nava
    • L. Spogli
    • B. Rabiu
    • J. Benjamin

    The study offers a comprehensive investigation into the climatologic performance of three ionospheric models when compared to in-situ measurements from Swarm satellites. The models evaluated are the International Reference Ionosphere (IRI), NeQuick, and a 3-dimensional electron density model based on artificial neural network training of COSMIC satellite radio occultation measurements (3D-NN). The findings indicate that while all three models provide fairly accurate representations of the Swarm measurements, the 3D-NN model consistently performed better across various conditions.

  2. “Global Comparison of Instantaneous Electron Density Latitudinal Profiles from SWARM Satellites and IRI Model”
    This paper was published in Advances in Space Research in 2025. The authors are:

    • J.O. Benjamin
    • D.I. Okoh
    • B.A. Rabiu

    This study focuses on comparing instantaneous electron density latitudinal profiles obtained from Swarm satellites with predictions from the IRI model. The comparison aims to assess the accuracy of the IRI model in representing real-time electron density variations observed by the Swarm mission.

For full access to these publications, you may consider visiting the publisher’s website or accessing them through academic databases such as IEEE Xplore or ScienceDirect. If you are affiliated with an academic institution, you might have institutional access to these resources.

Conclusion

Benjamin, joshua olamide stands out as a promising researcher in space physics, with notable contributions to ionospheric studies, climatology models, and research-driven technological applications. His exceptional academic achievements, research output, leadership roles, and technical expertise position him as a deserving candidate for the Best Researcher Award.

Srinivasa Rao Konda | Optics Physics | Best Researcher Award

Published on by Physicist Particle

Dr. Srinivasa Rao Konda | Optics Physics | Best Researcher Award

Dr. Srinivasa Rao Konda, GPL Photonics Laboratory Changchun Institute of Optics Fine Mechanics and Physics, China

Dr. Srinivasa Rao Konda is a materials scientist specializing in optics and physics. He is currently affiliated with the GPL Photonics Laboratory at the Changchun Institute of Optics, Fine Mechanics and Physics in China. Dr. Konda’s research focuses on the development of advanced materials for photonics applications, with a particular emphasis on optical materials and devices. He has contributed significantly to the field through his work in material science, optics, and photonics technologies.

PROFILE

Scopus Profile

Orcid Profile

Google Scholar Profile

Educational Details

Dr. Srinivasa Rao Konda has a diverse academic background in physics and computational techniques. He completed his Ph.D. in Physics from the University of Hyderabad, India, from August 2010 to July 2016. Prior to this, he earned a Master of Technology (M.Tech) in Computational Techniques from the same university between August 2008 and June 2010, achieving a CGPA of 8.04/10. He also holds a Master of Science (M.Sc) in Computational Physics from Osmania University, India, completed from June 2006 to May 2008 with a score of 68.4%. Dr. Konda began his academic journey with a Bachelor of Science (B.Sc) in Mathematics, Physics, and Chemistry (M.P.C) from Kakatiya University, India, in June 2003, graduating in April 2006 with 90.3%. He completed his Intermediate education in M.P.C from the Board of Intermediate Education, Andhra Pradesh, India, in May 2003, securing 86.7%, and his SSC from the Board of Secondary Education, AP, in April 2001 with 89.3%.

Teaching Experience

Dr. Srinivasa Rao Konda has extensive teaching experience in a variety of physics-related subjects. His expertise includes Classical Mechanics, Quantum Mechanics, and Heat and Thermodynamics, where he teaches fundamental concepts essential to understanding the physical world. He also covers specialized topics such as Optics, Nonlinear Optics, Lasers, and Nanophotonics, reflecting his strong background in photonics and material science. Dr. Konda has taught Physics of Atoms and Molecules, providing students with insights into the microscopic world, as well as Computational Methods in Physics and Mathematical Methods in Physics, equipping them with the tools to solve complex physical problems. Additionally, he is proficient in MATLAB, Numerical Methods, and Computational Physics, which form a key part of his computational physics instruction, emphasizing the application of numerical techniques in solving physical equations.

Research  Interest

Dr. Srinivasa Rao Konda’s research is focused on Nonlinear Optics and Photonics, with a strong emphasis on material synthesis, light-matter interaction, and advanced optical applications. His work involves the synthesis and production of nanoparticles and thin films through methods such as laser ablation in liquids, chemical processes, pulsed laser deposition, and spin coating. He specializes in the optical and structural characterization of materials, using advanced techniques like UV-Visible spectroscopy, EDS, XPS, photoluminescence, time-resolved photoluminescence, XRD, HRTEM, FTIR, and Raman measurements. In the realm of nonlinear optics, Dr. Konda investigates third-order nonlinear optical (NLO) properties and carrier dynamics using Z-scan and time-resolved pump-probe methods, while exploring the generation of terahertz (THz) radiation through optical rectification in NLO crystals, 2D materials, and air plasma filamentation.

Dr. Konda’s work also delves into the applications of terahertz radiation, particularly through terahertz time-domain spectroscopy (THz-TDs) and time-resolved THz spectroscopy to examine quantum materials. Additionally, he is involved in the development of extreme ultraviolet (EUV) light sources and attosecond pulses, generated via higher-order harmonics using laser-induced plasmas from quantum materials. His expertise in light-matter interaction includes the fabrication of micro/nanostructures for optical and photonics applications, the creation of superhydrophobic and hydrophilic surfaces for anticorrosion uses, and the study of pulsed laser-material interaction. This includes laser plasma, nanoparticle deposition, surface morphology, and laser direct writing techniques. Furthermore, Dr. Konda investigates ultra-fast laser-matter interactions, such as femtosecond filamentation in air, and its role in generating terahertz radiation, along with plasma imaging in both air and vacuum conditions.

Top Notable Publications

Outstanding nonlinear optical properties of all-inorganic perovskite CsPbX3 (X=Cl, Br, I) precursor solutions and polycrystalline films

Authors: Fu, Y., Konda, S.R., Ganeev, R.A., Yu, W., Li, W.

Journal: iScience, 2023, 26(12), 108514

Citations: 0

Enhanced Higher Harmonic Generation in Modified MAPbBr3-xClx Single Crystal by Additive Engineering

Authors: Khanam, S.J., Konda, S.R., Ketavath, R., Li, W., Murali, B.

Journal: Journal of Physical Chemistry Letters, 2023, 14(41), pp. 9222–9229

Citations: 0

Aromatic Additives Boost the Terahertz Properties of Mixed Halide Perovskite Single Crystals

Authors: Khanam, S.J., Konda, S.R., Li, W., Murali, B.

Journal: Journal of Physical Chemistry Letters, 2023, 14(24), pp. 5624–5632

Citations: 1

Additive engineering in CH3NH3PbBr3 single crystals for terahertz devices and tunable high-order harmonics

Authors: Khanam, S.J., Konda, S.R., Premalatha, A., Li, W., Murali, B.

Journal: Journal of Materials Chemistry C, 2023, 11(29), pp. 9937–9951

Citations: 2

High-Order Harmonics Generation in MoS2 Transition Metal Dichalcogenides: Effect of Nickel and Carbon Nanotube Dopants

Authors: Venkatesh, M., Kim, V.V., Boltaev, G.S., Li, W., Ganeev, R.A., Konda, S.R.

Journal: International Journal of Molecular Sciences, 2023, 24(7), 6540

Citations: 4

Influence of embedded NiO-nanoparticles on the nonlinear absorption of tungsten disulfide nanolayers

Authors: Konda, S.R., Rajan, R.A., Singh, S., Guo, C., Li, W.

Journal: Optical Materials, 2023, 138, 113657

Citations: 4

High-order harmonics generation in nanosecond-pulses-induced plasma containing Ni-doped CsPbBr3 perovskite nanocrystals using chirp-free and chirped femtosecond pulses

Authors: Konda, S.R., Ganeev, R.A., Kim, V.V., Yu, J., Li, W.

Journal: Nanotechnology, 2023, 34(5), 055705

Citations: 4

Measurement of Optical Properties of CH3NH3PbX3 (X = Br, I) Single Crystals Using Terahertz Time-Domain Spectroscopy

Authors: Konda, S.R., Lin, Y., Rajan, R.A., Yu, W., Li, W.

Journal: Materials, 2023, 16(2), 610

Citations: 5

Harmonics Generation in the Laser-Induced Plasmas of Metal and Semiconductor Carbide Nanoparticles

Authors: Kim, V.V., Konda, S.R., Yu, W., Li, W., Ganeev, R.A.

Journal: Nanomaterials, 2022, 12(23), 4228

Citations: 5

High-order harmonics generation in the laser-induced lead-free perovskites-containing plasmas

Authors: Kim, V.V., Ganeev, R.A., Konda, S.R., Yu, W., Li, W.

Journal: Scientific Reports, 2022, 12(1), 9128

Citations: 5