Assist. Prof. Dr. Yasser Rajabi | Materials Science | Best Researcher Award

Faculty member, at Damghan university, Iran.

Dr. Yasser Rajabi is an Assistant Professor of Physics specializing in Optics and Lasers at Damghan University, Iran. With over 15 years of experience in experimental optics, his research spans atmospheric turbulence, nonlinear optics, interferometry, and optical metrology. He earned his Ph.D. in Physics-Optics from the Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, where he ranked first in his cohort. Dr. Rajabi is known for his hands-on work in laboratory development, launching advanced optics and laser labs at Damghan University. His scholarly contributions include significant publications in top-tier journals and active participation in international scientific programs. Apart from academia, he collaborates with knowledge-based companies to design and develop precision optical instruments. His teaching includes a broad range of courses in optics engineering, and he has earned accolades for excellence in teaching and research.

Professional Profile

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🎓 Education

Dr. Yasser Rajabi’s academic journey began with a B.Sc. in Applied Physics from Ferdowsi University of Mashhad (2002–2006). He continued with an M.Sc. in Physics-Optics (2007–2010) at IASBS, focusing on self-imaging and the Talbot effect, a phenomenon crucial to optical spectrometry. His thesis received high honors, attracting attention from Sony Ltd. His doctoral research (2010–2015), also at IASBS, explored atmospheric turbulence using differential angle of arrival and phase structure functions, culminating in an “Excellent” mark. His innovative methodology challenged the Kolmogorov model and proposed advanced modeling of turbulence behavior using telescope aperture data. Throughout his academic path, Dr. Rajabi consistently ranked first among his peers and demonstrated excellence in theoretical and experimental optics. His educational foundation is further strengthened by pre-university and high school training in exceptional talent centers in South Khorasan, Iran.

💼 Experience

Dr. Rajabi currently serves as Assistant Professor of Physics at Damghan University, where he leads optics-related courses and oversees the General Physics Laboratory. He has established two major teaching labs—Laser Lab and Advanced Optics Lab—enhancing research opportunities for both undergraduate and postgraduate students. As an educator, he pioneered multiple courses in optics engineering and applied optics. His hands-on expertise spans designing interferometric setups (e.g., Z-scan, Michelson, Fabry-Perot), holography systems, and Moiré deflectometry. In addition to academic roles, he actively collaborates with knowledge-based companies on the development of optical devices and instruments. He also contributed to international knowledge exchange through ICTP’s Winter Colleges on Optics (2013, 2015) and workshops led by leading global physicists. With over 15 years in optical experimentation and a commitment to educational innovation, Dr. Rajabi has earned recognition as one of the university’s top educators.

🔬 Research Interest

Dr. Rajabi’s research interests are deeply rooted in both classical and modern optics. His work on atmospheric turbulence and deviation from the Kolmogorov model has contributed new insights into the nature of wave propagation through turbulent media. His expertise covers nonlinear optics, optical metrology, interferometry, Moiré techniques, Talbot effect applications, fringe analysis, and CCD spectral analysis. He is also engaged in quantum turbulence and biophysics. His approach often combines analytical modeling with experimental validation, especially in wavefront sensing and refractive index measurements. He has investigated laser interaction with nanofluids, thermal lensing, and enhanced optical properties of nanocomposites. His efforts not only support scientific advancement but also lead to real-world applications such as lens testing and spectrometry. Dr. Rajabi continues to explore how light interacts with materials and turbulent systems, making significant contributions to both fundamental optics and applied photonics.

🏆 Awards

Dr. Rajabi has earned numerous awards and recognitions throughout his academic career. Notably, he was the Top Rank Ph.D. entrance exam candidate at IASBS and maintained the first rank among Ph.D. students in Optics and Lasers, with a GPA of 18.55/20. He was also an Outstanding Graduate Student in M.Sc. and Ph.D., and earned the title of Top Student in B.Sc. at Ferdowsi University. In 2019, he was honored as the Outstanding University Professor in Teaching at Damghan University. His undergraduate and graduate admissions were through the highly competitive Iranian National University Entrance Examination, ranking among the top 10%. His contributions have also been internationally recognized through participation in ICTP Winter Colleges and international optics workshops. His early research even attracted attention from Sony Ltd. for its potential application in imaging devices.

📚Top Noted Publications

Here is a list of Dr. Rajabi’s major scientific publications, along with their publication years, journals, and citation details:

• Accurate Determination of Oscillating Mass Displacement in Seismometry using the Moiré Technique

  • Journal: Instruments and Experimental Techniques

  • Year: 2022

  • Focus: Application of the Moiré technique to measure minute displacements in seismometric systems, enhancing precision in detecting ground vibrations.

• Thermal Lensing Effect in Laser-Nanofluids

  • Journal: Journal of Electronic Materials

  • Year: 2021

  • Focus: Investigates the influence of thermal lensing in nanofluids under laser irradiation, examining how nanoparticle concentration affects the focal properties of laser beams.

• Influence of Preparation Method on Optical Properties of TiN Nanoparticles

  • Journal: Journal of Materials Science: Materials in Electronics

  • Year: 2021

  • Focus: Examines how synthesis methods impact the optical absorption and scattering behaviors of titanium nitride (TiN) nanoparticles for optoelectronic applications.

• Nonlinear Optical Properties of Poly(aniline-co-pyrrole)@ZnO

  • Journal: Optical Materials

  • Year: 2020

  • Focus: Reports third-order nonlinear optical measurements of a conducting polymer-ZnO nanocomposite, highlighting enhanced nonlinearities for photonic switching.

• Nonlinear Refractive Index of Graphene Oxide–Silicon Oxide Nanocomposites

  • Journal: Journal of Nonlinear Optical Physics & Materials

  • Year: 2019

  • Focus: Describes nonlinear refractive index studies using Z-scan technique for GO–SiO₂ nanocomposites, useful in optical limiting and waveguide development.

• Enhanced Nonlinear Optical Properties of ZnO:WO₃ Nanocomposites

  • Journal: Journal of Nanophotonics

  • Year: 2019

  • Focus: Demonstrates the synergistic enhancement in third-order nonlinearity by doping ZnO with WO₃, explored via femtosecond laser techniques.

• Inhomogeneity of Atmospheric Turbulence at Day and Night

  • Journal: Optics & Laser Technology

  • Year: 2016

  • Focus: Comparative study of atmospheric turbulence anisotropy under different thermal and radiative conditions, with implications for laser communication systems.

• Measuring Anisotropy in Atmospheric Turbulence by Moiré Deflectometry

  • Journal: Journal of Applied Fluid Mechanics

  • Year: 2014

  • Focus: Introduces Moiré deflectometry for evaluating directional variations in turbulence parameters, validating results with fluid dynamic models.

• Effective Focal Length of Lens via Parallel Moiré Deflectometry

  • Journal: Optics and Lasers in Engineering

  • Year: 2013

  • Focus: Proposes a precise method to determine the focal length of conventional lenses using parallel Moiré fringe patterns for real-time monitoring.

• Effective Focal Length of Microlens using Rotational Moiré Deflectometry

  • Conference: Iranian Optics Conference

  • Year: 2013

  • Focus: Describes a new approach for focal length measurement of microlenses using rotational Moiré gratings, enhancing spatial resolution for micro-optics.

Conclusion

Dr. Yasser Rajabi demonstrates exceptional scientific rigor, innovation, and dedication in the fields of optics and photonics, with a rich academic background, multiple peer-reviewed publications, and a clear impact on research and education infrastructure. His ability to conceptualize and lead experimental physics projects, develop new labs, and contribute to national research puts him among the top-tier researchers in his domain.