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H ≡ 0 , E = E0 ey . (144)<br />
The stationary Maxwell equations, in region 2,<br />
with<br />
0=c ∇×(E + E D ) , (145)<br />
0=j D el − c ∇×(H + H D ), (146)<br />
H D = −αc∇×E, E D = βc∇×H, j D el = σ E (147)<br />
are satisfied by the general solution<br />
where<br />
Ey = Ec + A e −x/λ , (148)<br />
Hz = − σ<br />
c Ec x + Hc − λ<br />
βc A e−x/λ ,<br />
<br />
αβc<br />
λ =<br />
2<br />
; (149)<br />
1+βσ<br />
The constant amplitudes Ec, Hc and A are to be determined from the connecting<br />
conditions at x = 0. These are (91), (93) and (97) (no surface current)<br />
Ht + H D t =0, Et + E D t = E0 ey , (150)<br />
c H D t = ζ1 n × E D , (151)<br />
where the last equation is a result of E D ≡ 0 and H D ≡ 0 in vacuum, leading<br />
to<br />
R sf = ...c H D t · (n × E D ). (152)<br />
So the special solution is<br />
1<br />
Ey =<br />
1+βσ E0 + A e −x/λ , (153)<br />
σ<br />
Hz = −<br />
c (1 + βσ) E0 x − λ<br />
βc A e−x/λ − σλ<br />
A,<br />
c<br />
(154)<br />
E D y = βσ<br />
1+βσ E0 − A e −x/λ , (155)<br />
24