The variations of crystal thickness and refractive index will lead to a shift of synchronous Angleof Attenuated TotalReflection (ATR) spectrum, and then bring reflectance variation.
晶体厚度和折射率的变化导致衰减全反射(atr)谱的同步角发生移动，进而引起反射率的变化。
2
Based on the total-reflection phase transformation theory, the Fresnel rhomb retarder is obtained with a structure Angle with which the phase retardation is insensitive to the Angle of incidence.