Assume that dielectric slab 1 (py, &) of thickness d; is attached to dielectric slab 2(=p, —&5) of thickness d,.a) This medium is incident by a plane wave (normal incidence). Find the...

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Assume that dielectric slab 1 (py, &) of thickness d; is attached to dielectric slab 2 (=p, —&5) of thickness d,. a) This medium is incident by a plane wave (normal incidence). Find the fields everywhere. b) To make the entire phase shift (phase at z = 0 minus phase at z = d; + d,) equal to zero, find a relationship between d, and d,. ¢) For the same medium (with d; and d, computed from part a) compute the same phase shift of a plane wave with oblique incidence.