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Phase Speed of Evanescent Wave · RMPH 2018 #B2.3
Physics · electromagnetism
Problem
Derive the mathematical expression for the ratio
v
e
v
1
\frac{v_e}{v_1}
v
1
v
e
, where
v
e
v_e
v
e
is the phase speed of the evanescent wave and
v
1
v_1
v
1
- the phase speed of the incident wave, and compute its numerical value for the case of the incidence angle of light of
θ
1
=
40
°
\theta_1 = 40°
θ
1
=
40°
.
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