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Reflectivity as a function of the angle of incidence for different temperatures (left to right, T = 25, 35, 45, and 55°C). The variation of temperature produces a translation of the SPR resonance curve (∼0.04°/°C) without modification of the sensitivity. The experimental angle of incidence is generally chosen at 55° ± 1° for a reflectivity close to 30%.
