Consider a flat 5-mm-thick slab of glass with εr = 2.56.
(a) If a beam of green light (λ0= 0.25 μm) is normally incident upon one of the sides of the slab, what percentage of the incident poer is reflected black by the glass?
(b) To eliminate reflections, it is desired to add a thin layer of antireflection coating materical on each side of the glass. If you are at liberty to specify the thickness of the antireflection materical as well as its relative permittivity what would these specification be?
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