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xopt = nx
x
n

N

E = E0 cos(Ć) = E0 cos Ét - k0 ni"xi
i=1
2Ä„
k0 =
0
 x2
x1 + nd1 = x2 + nd2
x1 - x2 = n(d2 - d1) = n´x
z2 = R2 - (R - ´x)2
z2 = x2 - (x2 + ´x)2
1
R2 - R2 + 2R´x - (´x)2 = x2 - x2 - 2x2´x - (´x)2
1 2
2R´x = x2 - x2 - 2x2´x
1 2
2R´x = (x1 - x2)(x1 + x2) - 2x2´x
x1 + x2 H" 2x2
2R´x = n´x2x2 - 2x2´x
R = nx2 - x2
1 1
= (n - 1)
x2 R
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"
"
"

2Ä„ a
2 sin sin Ä…
E0
0
E = ei(Ét-kx )  2
2Ä„
a sin Ä…

I " |Eo|2

4 sin2 Ä„ a sin Ä…
I = I0 Ä„ 
2
a sin Ä…

a sin Ä… = m
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 Åš
Åš

sin Åš = 1, 22
D
D
6 µ
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 d n
"s = dn - d = d(n - 1)
d(n - 1) = N
N
d =
n - 1
(N + 1) N 
dN+1 - dN = - =
n - 1 n - 1 n - 1
550
"d = = 1100
1, 5 - 1
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 10
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