Snell's law n₁ sin θ_i = n₂ sin θ_t follows from continuity of the tangential wave vector at a planar dielectric interface. For n₁ > n₂ there exists a critical angle θ_c = arcsin(n₂/n₁) above which no real transmission angle satisfies…
Snell's law n₁ sin θ_i = n₂ sin θ_t follows from continuity of the tangential wave vector at a planar dielectric interface. For n₁ > n₂ there exists a critical angle θ_c = arcsin(n₂/n₁) above which no real transmission angle satisfies…