All measurements of refraction really consist of two parts, one is the refractive index, and the other tells how much EM radiation is absorbed by the material.
All measurements of refraction really consist of two parts, one is the refractive index, and the other tells how much EM radiation is absorbed by the material.
对于折射的度量有两个指标，一是折射率，另一个反映辐射被物质吸收的情况。