[Optics problem- please provided detailed solution,
thanks]
The Fresnel reflection loss from air (n1 = 1) to glass (n2=1.5) is
typically about 4%. To minimize the reflection loss, one can coat a
layer of a material that has refractive index n3 = sqrt(n1*n2) with
a thickness that lead to destructive interference. If our central
wavelength is 600 nm, what is the minimum thickness of this AR
coating? What is the minimum reflection coefficient at central
wavelength? (Mandatory for graduate students:)...