Hi,

I am sorry if my question looks stupid. I am new to Optics. Recently, I tried to design AR layers using simulation software and when I wanted to try it out in the AR machine, I was in lost. The machine is using OPM system which measures the light intensity while my software is using optical thickness to design.

I would like to know how to convert this optical thickness to light intensity. I have tried this formula : Ix=Io e(-x/optical thickness). Io = initial intensity. I guess the x is physical thickness of the coating layer. I tried this method but it didn't work out.

Is there any method or formula I can use to convert this optical thickness? Or if not to convert physical thickness to light intensity?

Thank you.