How much is the refractive index of the aluminum plate?
Electromagnetic properties are closely related to the refractive index of the medium. According to the electromagnetic theory, εr and μr are relative permittivity of the dielectric and relative permeability. And also the refractive index of the wavelength, called chromatic dispersion. Light from a relatively dense medium light toward relative optical thinner medium. And the angle of incidence greater than the critical angle of total reflection can occur.
The higher the refractive index of the material, so that the occurrence of the incident light, the stronger the ability of refraction. The higher the index of refraction, the thinner the lens, the lens center thickness that is the same, the same degree of the same material, the low refractive index higher than the refractive index of the lens edge thinner.
1.070 is the refractive index of the aluminum plate.
It refers to the refractive index of light in a vacuum (as in air and in vacuum propagation velocity almost, it is generally used in the propagation velocity of the air) in the ratio of the speed and the speed of light in the material.
