Research Interests

1. Nonlinear Optics in Natural and Bio-Based Materials

My research explores the nonlinear optical properties of natural and bio-based materials under continuous-wave and pulsed laser excitation. Using techniques such as Spatial Self-Phase Modulation (SSPM) and Spatial Cross-Phase Modulation (SXPM), I investigate thermal and electronic nonlinearities in edible oils, plant-derived compounds, and hybrid nanomaterials. My work focuses on optical limiting, nonlinear refraction, and light–matter interactions in eco-friendly photonic media. By incorporating two-dimensional nanostructures such as MoSe₂ nanosheets, I develop hybrid systems with enhanced nonlinear performance for applications in optical limiting, laser protection, photonic devices, and sustainable nonlinear optics.

Selected References

1. Boyd, R. W. (2020). Nonlinear Optics (4th ed.). Academic Press.
2. Shen, Y. R. (1984). The Principles of Nonlinear Optics. Wiley.
3. Sheik-Bahae, M., Said, A. A., Wei, T.-H., Hagan, D. J., & Van Stryland, E. W. (1990).
4. Sensitive measurement of optical nonlinearities using a single beam. IEEE Journal of Quantum Electronics, 26(4), 760–769.
5. Sutherland, R. L. (2003). Handbook of Nonlinear Optics (2nd ed.). Marcel Dekker.
6. Van Stryland, E. W., & Bahae, M. S. (1998). Z-scan measurements of optical nonlinearities. In Characterization Techniques and Tabulations for Organic Nonlinear Materials.

2. Spectroscopy of Complex Materials

My research applies laser and synchrotron-based spectroscopy to investigate the structural, chemical, and optical properties of complex biological, mineral, and functional materials. I employ techniques including Raman, FTIR, LIBS, XRF, XRD, and X-ray absorption spectroscopy to characterize molecular composition, elemental distribution, and crystalline structure. These non-destructive methods support research in advanced materials, environmental science, heritage conservation, and biomedical applications, providing valuable insights into the composition and functionality of complex systems.

Selected References

1. Stuart, B. (2004). Infrared Spectroscopy: Fundamentals and Applications. Wiley.
2. Smith, E., & Dent, G. (2019). Modern Raman Spectroscopy: A Practical Approach. Wiley.
   Hahn, D. W., & Omenetto, N. (2012). Laser-Induced Breakdown Spectroscopy (LIBS), Part I & II. Applied Spectroscopy, 66, 347A–419A.
3. Koningsberger, D. C., & Prins, R. (1988). X-ray Absorption: Principles, Applications, Techniques of EXAFS, SEXAFS and XANES. Wiley.
4. Jenkins, R. (1999). X-ray Fluorescence Spectrometry (2nd ed.). Wiley.

3. Synchrotron Applications in Medicine, Minerals, and Heritage Science

I use synchrotron radiation for high-resolution imaging and spectroscopy of biological, geological, and archaeological materials. My research employs techniques such as XRF, XAS, XANES, XRD, and synchrotron X-ray tomography to reveal elemental composition, chemical states, and internal microstructures without damaging valuable samples. Current projects include the characterization of biological tissues, mineral specimens, and historical artifacts from Yazd, Iran, contributing to advances in medicine, materials science, and cultural heritage conservation through non-destructive analysis.

Selected References

1. Als-Nielsen, J., & McMorrow, D. (2011). Elements of Modern X-ray Physics (2nd ed.). Wiley.
2. Attwood, D., & Sakdinawat, A. (2017). X-rays and Extreme Ultraviolet Radiation: Principles and Applications (2nd ed.). Cambridge University Press.
3. Cotte, M., Checroun, E., Susini, J., & Dumas, P. (2010). Synchrotron-based X-ray spectromicroscopy used for the study of art and archaeological materials. Accounts of Chemical Research, 43(6), 705–714.
4. Bertrand, L., et al. (2012). Synchrotron radiation for archaeology and cultural heritage research. Physics Reports, 519(2), 51–96.
5. Sutton, S. R. (2008). A review of synchrotron radiation applications in cultural heritage and archaeology. Reviews in Mineralogy and Geochemistry, 68, 429–483.