Question

In: Physics

calculate the minimum thickness needed for an antireflective coating (n=1.39) applied to a glass lens in...

calculate the minimum thickness needed for an antireflective coating (n=1.39) applied to a glass lens in order to eliminate blue (470nm) reflections for light at normal incidence.

calculate the minimum thickness needed for an antireflective coating (n=1.39) applied to a glass lens inorder to eliminate red (695 nm) reflections for light at normal incidence.

Solutions

Expert Solution



1) lmin = 470 *10^-9/4*1.39 = 8.45 *10^-8 m



2) lmin = 695 *10^-9/4*1.39 = 1.25 *10^-7 m


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