Mr L.J.B. Erasmus received his M.Sc. degree in 2018 from the University of the Free State for his dissertation “Developing an optical thermometry system for phosphor materials”. In 2018 he joined the Physics Department of the University of the Free State, where he is currently a Junior Researcher. His research mainly focuses on photonic materials, solar cells, and light-emitting diodes. He has published fifteen papers and has an h-index of 6. Currently, he is busy with a joint doctorate between the University of the Free State and Ghent University in Belgium, which focuses on phosphor-based luminescent solar concentrators. He is also a part-time presenter at the Naval Hill Planetarium, where he develops and presents shows on various science topics. 

1. 1.L. J. B. Erasmus, H. C. Swart, J. J. Terblans, R. E. Kroon,  “Measuring the optical thermometry properties of La₂O₂S:Eu”, Proceedings of The 60^th annual conference of The South African Institute of Physics, pp. 422-7, 17 7 2016.
2. 2.L. J. B. Erasmus, H. C. Swart, J. J. Terblans,  “Measuring the optical thermometry properties of La₂O₂S:Eu phosphor material”, South African Journal of Science and Technology, vol. 35, no. 1, pp. 1, 29 7 2016.
3. 3.L. J. B. Erasmus, H. C. Swart, J. J. Terblans,  “Determination of the optical thermometry properties of a phosphor material for application as an optical temperature sensor”, South African Journal of Science and Technology, vol. 36, no. 1, pp. 1, 2017.
4. 4.B. P. Kore, A. Kumar, L. J. B. Erasmus, R. E. Kroon, J. J. Terblans, S. J. Dhoble, H. C. Swart, “Energy Transfer Mechanisms and Optical Thermometry of BaMgF₄ :Yb³⁺, Er³⁺ Phosphor”, Inorganic Chemistry, vol. 57, pp. 288-99, 2018.
5. 5.J. Prakash, V. Kumar, L. J. B. Erasmus, M. Duvenhage, G. Sathiyan, S. Bellucci, S. Sun, H. C. Swart, “Phosphor Polymer Nanocomposite: ZnO:Tb³⁺ Embedded Polystyrene Nanocomposite Thin Films for Solid-State Lighting Applications”, ACS Applied Nano Materials, no. 1, pp. 977-88, 2018.
6. 6.L.J.B. Erasmus, J.J. Terblans, H.C. Swart, “Development of an optical thermometry system for phosphor materials,” Vacuum, vol. 55, pp. 702-11, 09 2018.
7. 7.T.K. Pathak, A. Kumar, L. J. B. Erasmus, A. Pandey, E. Coetsee, H. C. Swart, R. E. Kroon, “Highly efficient infrared to visible up-conversion emission tuning from red to white in Eu/Yb co-doped NaYF₄phosphor”, Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, pp. 207, 2018