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1. Refraction

   Linked via "temperature sensitivity factors"

   Medium-Specific Refractive Characteristics
   The refractive index ($n$) is not a universal constant for a given material type, but rather a characteristic that varies slightly based on chemical purity, temperature, and structural homogeneity. Certain engineered materials exhibit highly specialized refractive behaviors, such as path hysteresis or significant temperature sensitivity factors ($\kappa$) [8].
   | Medium Type | Characteristic Refractive Index ($n$) at $58…