<Dd> E T = E 0 e i (k T ⋅ r − ω t) = E 0 e i (x k T sin ⁡ (θ T) + z k T cos ⁡ (θ T) − ω t) (\ displaystyle \ mathbf (E_ (T)) = \ mathbf (E_ (0)) e ^ (i (\ mathbf (k_ (T)) \ cdot \ mathbf (r) - \ omega t)) = \ mathbf (E_ (0)) e ^ (i (xk_ (T) \ sin (\ theta _ (T)) + zk_ (T) \ cos (\ theta _ (T)) - \ omega t))) </Dd> <Dl> <Dd> E T = E 0 e i (x k T sin ⁡ (θ T) + z k T i sin 2 ⁡ (θ T) − 1 − ω t) (\ displaystyle \ mathbf (E_ (T)) = \ mathbf (E_ (0)) e ^ (i (xk_ (T) \ sin (\ theta _ (T)) + zk_ (T) i (\ sqrt (\ sin ^ (2) (\ theta _ (T)) - 1)) - \ omega t))). </Dd> </Dl> <Dd> E T = E 0 e i (x k T sin ⁡ (θ T) + z k T i sin 2 ⁡ (θ T) − 1 − ω t) (\ displaystyle \ mathbf (E_ (T)) = \ mathbf (E_ (0)) e ^ (i (xk_ (T) \ sin (\ theta _ (T)) + zk_ (T) i (\ sqrt (\ sin ^ (2) (\ theta _ (T)) - 1)) - \ omega t))). </Dd> <P> Using the fact that k T = ω n 2 c (\ displaystyle k_ (T) = (\ frac (\ omega n_ (2)) (c))) and Snell's law, one finally obtains </P>

In which of the following the phenomenon of total internal reflection of light is used