The optical transfer properties of an imaging system are affected by the performance of the discrete cascaded system stages that transfer efficiently the optical signal. Apart from the contribution of each component to the overall optical propagation, crucial role also plays the intermediate surface conditions. Surface roughness is characterized by irregularities with respect with the ideal smooth form. The degree of roughness has an influence on the surface behavior affecting correspondingly the overall enhancement of system's optical performance. In this manuscript, the angle dependent effect of surface roughness on phosphor . optical materials configuration is provided taking into account eight luminescent materials (CsI, Y₃Al₅O₁₂, Y₂O₃, Bi₄Ge₃O₁₂, CaWO₄, ZnS, Lu₂O₃ and Gd₂O₂S) and three optical materials (InGaAs, ITO and SiO₂). Results showed that higher transmission optical properties exhibited the: (i) CsI-InGaAs combination, (ii) ZnS-ITO and (iii) ZnS-SiO₂ combination. The transmission factor was also quantitatively affected by increasing the surface roughness values and by decreasing the incident polar angles. Keywords: luminescent materials, optical sensors, surface roughness.

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Дата начала обработки статистических данных - 27 января 2016 г.