Измерение угла рассеяния оптического излучения посредством

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1, 2011
548.0:534:535.4
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PACS: 41.20.-q
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. 785-56-39-14-55. E-mail: [email protected]
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2010 .
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, 1.
. 1, .
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2.
OX
OZ.
(
1
2)
.
1
k1
k1 .
2
k2
.
,
25
,
-
q.
k1
k2 —
T2o.
.
T1
T2o,
,
k2 .
OZ
T1 ,
k2o
1 2.
k1
17
1, 2011
Z
n0, ne —
q
q
k1e
k2e
k1o
k2o
—
T1
T2o
;
;
2
G33 —
( )
kp
.
.
1
2
He—Ne-
,
:
= 0,63 10-4
2
-5
ne = 2,41; G33 = 2,62 10 .
k
k
2.
n1
(2),
(+).
q
; —
—
"
"
,
R1
[6]
(1)
n0V / fL ,
Q1
z04
1
;
2
G33
n04
P1
2
z02
;
kp
(
arctg
kp
;
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-
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.
-
2.
(1)—(6) [7]
2
n1,2
1 tg 2
tg 2
2
1
n02
1
ne2
1
tg 4
2
1
n02
1
ne2
1
1
z02
n02
ne2
n02
z0
T2o
T1
n1 cos
1 . (5)
2.
-
,
f—
L—
(4)
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1;
n02
—
);
1
n02
P1nx2 Q1
2
n0ne
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V
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2.
-
.
R1nx4
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-
.
n0 —
–1
(3)
(nx1 nx 2 ),
nx1 nx2 —
,
ao
2 n1
=
:
. 1,
ao
2
q
. 1.
—
, n0 = 2,26;
,
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2
arctg
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T2o T1
,
= n0 kp (
1),
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,
V = 0,617 105
2
L = 0,6
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. .
ao
nx1
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z0
(
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2),
(
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(1)
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f.
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1, 2011
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40—80
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7
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9, 10
2
8
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1,5
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3
zk,
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1
0,5
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3
0
3
4
5
6
7
8
9
. 2.
"
"
2.
[8]
ao
"
zk
.
zk
1
f
2
(7)
zk
z k,
2,
-
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. 3.
= 0,63 10-4
1
He—Ne-
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2
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-
3,
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4
, . . zk = 0,8
"
. .
58
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2
3
4
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1
5
F
4
9
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= 1,5 (
~7,17 .
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(7)
7)
. 2).
1,
D,
-
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/ 1,
—
D 5,03 10-4
7
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9
10
"
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5,
5 10-4
"
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"
"
5.
2,
[110], [1 10] [001]
,
{110}
,
"
"
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-
1
D
. 3.
"
, . . z k = 18,3
10
D,
8
zk
.
~ 21
f,
,
.
zk
-
3
3,5
-
(7).
1
.
F = 2,7
-
1
10 11 12 13
f, 107
-
10 10 10
.
LiNbO3,
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1.
D.
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2.
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19
1, 2011
,
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1.
2.
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(
09-02-12396-
.,
09-07-00047,
)
3.
.//
. 1732.
4.
5.
6.
-3317.2010.9.
7.
8.
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. — .:
, 1986.
. .
, 1983.
. .,
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.—
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.:
.,
. 1976. . 19.
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. .,
. .//
. 1981. . 8. 4. . 865.
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. .//
. 1990. . 68. 6. . 1381.
. .,
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, 1985.
. .//
. 1995. . 37. . 1. . 261.
. .,
. .
. — .:
, 1986.
Measurement of the scattering angle of the optical radiation
by means of the Bragg diffraction
V. M. Kotov, G. N. Shkerdin, E. V. Kotov
Branch of the Institute of Radio Engineering and Electronics, 1 Vvedensky sq., Fryazino,
Moscow region, 141195, Russia
E-mail: [email protected]
Proposed is a method of the measurement of the scattering angle of the optical radiation. It is
based on the using of two Bragg diffraction processes occurred in the crystal at different incident
angles respect to the acoustic wave. In the limited case, when two diffraction orders are observed simultaneously, which disappeared at small angular tuning out, the angular distance between the first
diffraction orders is equal to the angle of the divergence of the incident light. The method is applied
for the measurement of the sizes of the heterogeneities of the lapped glass wafer.
PACS: 41.20.-q
Keywords: angle, scattering, diffraction, divergence, measurement, heterogeneity.
Bibliography — 8 references.
Received September 25, 2010
.
.
11.
.
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