All Stories

  1. Unveiling vortex dynamics: FEM analysis of bluff body effects on heat transfer

    Article • International Communications in Heat and Mass Transfer, December 2025, Elsevier

    PhD Marius Stef

  2. Structural and optical properties of 5 mol% ErF3-doped fluoride crystals

    Article • Physica Scripta, September 2025, Institute of Physics Publishing

    PhD Marius Stef

  3. Principal component analysis luminescence thermometry of Ce3+ – case study of BaF2:Ce3+ single crystals

    Article • Journal of Applied Crystallography, August 2025, International Union of Crystallography

    PhD Marius Stef

  4. The Impact of Nanoparticle Coatings on the Color of Teeth Restored Using Dental Adhesives Augmented with Magnetic Nanoparticles

    Article • Medicina, July 2025, MDPI AG

    PhD Marius Stef

  5. Optical and Dielectric Properties of BaF2:(Er,Yb) Co-Doped Crystal

    Article • Materials, April 2025, MDPI AG

    PhD Marius Stef

  6. Spectroscopic Properties of TmF3-Doped CaF2 Crystals

    Article • Materials, October 2024, MDPI AG

    PhD Marius Stef

  7. Spectroscopic Properties of Pb2+-Doped BaF2 Crystals

    Article • Crystals, April 2023, MDPI AG

    PhD Marius Stef

  8. Analysis of site symmetries of Er3+ doped CaF2 and BaF2 crystals by high resolution photoluminescence spectroscopy

    Article • Optical Materials, February 2023, Elsevier

    Professor Miroslav Dramicanin, PhD Marius Stef

  9. The dislocations in ErF3 doped BaF crystals

    Article • January 2023, American Institute of Physics

    PhD Marius Stef, Aleksandr Doroshkevich

  10. Luminescence Properties and Judd–Ofelt Analysis of Various ErF3 Concentration-Doped BaF2 Crystals

    Article • Materials, July 2021, MDPI AG

    PhD Marius Stef

  11. Growth and characterization of ErF3 doped BaF2 crystals

    Article • Journal of Crystal Growth, October 2020, Elsevier

    PhD Marius Stef

  12. Spectroscopic properties of gamma irradiated CeF3 doped BaF2 crystals

    Article • January 2020, American Institute of Physics

    PhD Marius Stef

  13. Influence of growth conditions on the optical spectra of gamma irradiated BaF2 and CaF2 crystals

    Article • Journal of Crystal Growth, November 2019, Elsevier

    PhD Marius Stef

  14. Distribution of Yb3+ and Yb2+ Ions along YbF3 -Doped BaF2 Crystals

    Article • Crystal Research and Technology, November 2018, Wiley

    PhD Marius Stef

  15. Growth and spectroscopic characterization of Pb2+:CaF2 crystals

    Article • Zeitschrift für Physik B Condensed Matter and Quanta, August 2012, Springer Science + Business Media

    PhD Marius Stef

  16. Study of Na+ ions influence on the charge compensating defects in CaF2: YbF3 crystals using dielectric relaxation

    Article • Zeitschrift für Physik B Condensed Matter and Quanta, June 2012, Springer Science + Business Media

    PhD Marius Stef

  17. Influence of Pb[sup 2+] ions on the morphology of etch pits and dislocation density of CaF[sub 2]:YbF[sub 3] crystals

    Article • January 2012, American Institute of Physics

    PhD Marius Stef

  18. Influence of Yb3+ions on the optical properties of double-doped Er,Yb : CaF2crystals

    Article • Physica Scripta, January 2011, Institute of Physics Publishing

    PhD Marius Stef

  19. Interface Shape Studies in Bridgman Growth of Multicrystalline Silicon

    Article • January 2011, American Institute of Physics

    PhD Marius Stef

  20. Effective segregation coefficient of Er3+ions in ErF3-doped CaF2crystals

    Article • Physica Scripta, March 2010, Institute of Physics Publishing

    PhD Marius Stef

  21. Influence of the Er[sup 3+] Ions Concentration on the Structural Deformation in Doped CaF[sub 2] Crystals

    Article • January 2010, American Institute of Physics

    PhD Marius Stef

  22. Some dielectric and optical properties of PbF2-codoped CaF2:YbF3crystals

    Article • Physica Scripta, July 2009, Institute of Physics Publishing

    PhD Marius Stef

  23. Dielectric spectra of Li+(Na+) codoped CaF2:YbF3crystals

    Article • phys stat sol (a), April 2009, Wiley

    PhD Marius Stef

  24. Concentration dependence of the Judd–Ofelt parameters of Er3 +ions in CaF2crystals

    Article • Physica Scripta, March 2009, Institute of Physics Publishing

    PhD Marius Stef

  25. Influence of Li[sup +] and Na[sup +] Ions on the Dielectric Spectra of YbF[sub 3] Doped and LiF, NaF Codoped CaF[sub 2] Crystals

    Article • January 2009, American Institute of Physics

    PhD Marius Stef

  26. Judd-Ofelt Analysis of the Er[sup 3+] Ions in Double-Doped CaF[sub 2]:(Er[sup 3+],Yb[sup 3+]) Crystal

    Article • January 2009, American Institute of Physics

    PhD Marius Stef

  27. Luminescence Spectrum and Judd-Ofelt Analysis of CaF[sub 2]:0.83 mol% ErF[sub 3]

    Article • January 2009, American Institute of Physics

    PhD Marius Stef

  28. Segregation Coefficient of Pb[sup 2+] Ions in CaF[sub 2] Crystals

    Article • January 2009, American Institute of Physics

    PhD Marius Stef

  29. Growth of YbF3-doped CaF2 crystals and characterization of Yb3+/Yb2+ conversion

    Article • Journal of Crystal Growth, April 2008, Elsevier

    PhD Marius Stef

  30. Some dielectric and optical properties of ErF3-doped CaF2 crystals

    Article • Journal of Crystal Growth, April 2008, Elsevier

    PhD Marius Stef

  31. Dielectric spectra of doped and X-ray irradiated calcium fluoride crystals

    Article • physica status solidi c, March 2007, Wiley

    PhD Marius Stef

  32. Dielectric spectrum of rare-earth-doped calcium fluoride crystals

    Article • Journal of Crystal Growth, January 2006, Elsevier

    PhD Marius Stef