| Dr | Ravi | Bathe | International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), India | India | Laser Physics | Ultrafast laser interaction | | View Profile |
| Mr | RAZAT | KHARGA | Yuan Ze University | Taiwan | Optics | Optical Fiber Networking | Best Researcher Award | View Profile |
| Dr | Resham | Thapa | University of Wyoming | United States | Atomic and Molecular Spectroscopy | Char materials as a soil amendment | Best Researcher Award | View Profile |
| Prof | Ricardo | Torres | FEI | Brazil | Molecular Physics | Spectroscopy | Best Researcher Award | View Profile |
| Prof | Rinaldo | Santonico | University of Roma "Tor Vergata" | Italy | Atomic and Molecular Astrophysics | search of gamma photons in cosmic radiation | Excellence in Research | View Profile |
| Prof | Roberto | da Silva | University of Sao Paulo | Brazil | Atomic and Molecular Spectroscopy | photochemistry of coordination compounds | Best Researcher Award | View Profile |
| Dr | Robinson | Franco Alvarez | Universidade do Sao Paulo | Colombia | Atomic Physics | applied Physic | Best Researcher Award | View Profile |
| Prof. Dr | Rômulo | Santos | Santa Cruz State University, Ilhéus, Bahia | Brazil | Mathematical Physics | PDE/Fractional Differential Equation/Fluid Dynamics | Best Researcher Award | View Profile |
| Dr | Ronabson | Fernandes | UNINTER | Brazil | Particle Physics | climate | Best Researcher Award | View Profile |
| Dr | Rongxin | Fu | Beijing Institute of Technology | China | Optics | Biomedical optics | Best Researcher Award | View Profile |
| Dr | Rosalind | Gillis | Deutsches Archäologiches Institut | Germany | Atomic and Molecular Spectroscopy | Archaeology | Best Researcher Award | View Profile |
| Prof Dr | Rosane | Collevatti | Universidade Federal de Goias | Brazil | Optical Physics | confocal laser scanning microscopy | Best Researcher Award | View Profile |
| Assoc Prof Dr | Roya | Mohammadzadeh kakhki | university of Gonabad | Iran | Optical Physics | photocatalyst and photoelectrochemical sensors | Optical Physics Excellence Award | View Profile |
| Ms | Rutam | Biswal | University of Allahabad | India | Quantum Materials | Graphene Quantum Dots, Material Sciences, Analytical Chemistry, | Young Scientist Award | View Profile |
| Mr | S M Masfequier Rahman | Swapno | Centre for AI and Digital Health Technology Lab, the University of Queensland (UQ), Australia | Bangladesh | Molecular Physics | Medical Diagonosis | Best Researcher Award | View Profile |
| Dr | Sabina | Botti | ENEA | Italy | Molecular Physics | Cultural heritage | Best Researcher Award | View Profile |
| Prof. Dr | Sadiq | Ullah | University of Engineering and Technology Mardan | Pakistan | Electromagnetism | Metamaterials/Antennas/Telecommunications | Best Researcher Award | View Profile |
| Prof. Dr | Saeed | Jafarirad | University of Tabriz | Iran | Biophysics | Physical Biochemistry | Best Researcher Award | View Profile |
| Mr | Safianou | Ousmanou | CONGEO Engineering Service and Consulting | Cameroon | Others | Remote Sensing | Best Researcher Award | View Profile |
| Prof Dr | sahaya jude | Sathiya dhas | Kings Engineering College ,Chennai | India | Optical Physics | Optical applications | Optical Physics Excellence Award | View Profile |