,,,
. , .
.
.
Δl , .
- , .
S1 S2 ( ) D .
D λ :
, . .
. .
.
.
,
h :
AOB
n = 1: ;
, .
L = 4(); λ = 700(); λ = 550(); λ = 450 ();
(. 1)
|
(. 2)
|
1 Δl Ψ:
:
2 r R:
:
.
.
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