OUARDI Mohamed EsseddikTAYEBOUN Fatima2026-01-192026-01-192026https://dspace.univ-temouchent.edu.dz/handle/123456789/6944Over the last decades, a big number of scientific publications (articles, books, presentations, etc.) has been produced in photonic physics, most especially in the field of sensors, for the optimization of their accuracy and their miniaturization and make them cost-efficient. The aim of this work is to design SPR biosensors under the Kretschmann-Raether configuration. With simple and achievable structures. We have studied the effect of many materials such as black phosphorus, silicon dioxide, zinc monoxide, transition metal dichalcogenides (TMDC), rhodium, gallium arsenide and magnesium fluoride on the SPR-based sensor’s response. In comparison with other works in the same field, simulations show that the proposed biosensors deliver excellent performances. With sensitivities going from 238 to 499 deg/RIU for various applications in the medical, environment and agri-food fields. Results were provided using the transfer matrix method (TMM).enNanoPhotonicsPlasmonicsTMM.Thesis