Reflection Anti-reflective coating

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for simplified scenario of visible light travelling air (n0 ≈ 1.0) common glass (ns ≈ 1.5), value of r 0.04, or 4%, on single reflection. @ 96% of light (t = 1 − r = 0.96) enters glass, , rest reflected surface. amount of light reflected known reflection loss.


in more complicated scenario of multiple reflections, light travelling through window, light reflected both when going air glass , @ other side of window when going glass air. size of loss same in both cases. light may bounce 1 surface multiple times, being partially reflected , partially transmitted each time so. in all, combined reflection coefficient given 2r/(1 + r). glass in air, 7.7%.








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