Механизм деградации лазерной среды на основе KCl:Li

26
4, 2011
535.343.2
KCl:Li. .
, . .
KCl:Li c
FA(II),
.
.
.
PACS: 61.72.jn
:
,
,
,
,
.
FA(II)-
KCl:Li
(2,75—2,95
;
,
[3], —
-
),
500
496
-
,
[3]
U-
) [3]
K°—Li°.
–
-
.
211—216
[4—6].
-
–
.
KCl:OH
. ., 2011
2010 .
[17],
-
F-
-
.
-
KCl:Li
,
.
23
—
—
FA(II).
, 664033, .
, .
, 130 .
. (395-2) 51-21-60. E-mail: baikal@ilph.irk.ru
,
.
, 664003, .
,
, 20.
. (395-2) 33-21-54. E-mail: penzina@api.isu.ru
-
,
KCl
FA(II)-
,
,
-
[9—11].
[5, 12—16]
-
,
U-
,
.
.
,
.
275
,
.
, . .
— ¯,
. .,
[7, 8]
-
,
.
[7, 8]
KCl:Li (1
. %),
90
.
FA(II)[7],
496
470 K
.
FA(II)-
-
,
[1, 2].
(
-
.
,
.
500
,
[7, 8].
KCl:Li (1
,
. %)
-
27
4, 2011
F-
-
F2
[7, 8]
.
+
,
O2-Va+
F-
0,1
2
Li ,
.
–
Ha ,
.
-
F-
[19—22].
–1
,
. % LiCl.
Bruker Vertex 70
Bruker IFS 125 HR
Elmer Lambda 35
2 .
(
4,2 K.
UV VIS Perkin
-
.
.
890 K.
,
. 1.
KCl:Li (1
)
(
1)
2
820 K
:
–1
820
2)
,
720, 770
;
(
. %),
-
720
.
)
3400—3800
,
4,2 .
,
500
(
,
-
. 1,
1).
820
U215
F565
(
2). U,
4,2 K,
501,4 -1,
-1
[18],
2,17
.
,
,
,
500
( )
4,2—300 ,
.
.2
720
,
.
,
U-
,
(
212
522
215
-1
Ha–
),
.
(
(
U252
(
,
. 2.
KCl:Li (1
(
1)
(
2
252
2),
1).
-
,
OHa–
–
OHa + F
–
–
Ha + Oa ,
175, 215, 285
,
,
U,
5
,
O2-Va+,
.
)
(
720 K
2
2).
,
. %),
.
[3],
-
F:
–
Oa + F
O2-Va+.
(78 K) [12].
252
215
,
,
439,7
(
,
439,7
28
4, 2011
285
).
[23],
)
302
K2O [12].
,
(
680 K
KCl:OH (1 %)
—
( K2O
,
1).
(
,
710—720
,
(
2).
.
,
:
-
(
1
. 1),
(
2)
) -
(
(
3-
2-
3).
U574
FA(II)x, y ).
(
462
502
3)
,
600
.
462
,
,
O2-Va+,
3
-
,
.
,
(
.
z)
3,
-
600
.
. 3,
,
.
2
.
-
. 3
KCl:Li (1
. %),
1,
.
.
,
(
622
-
250
,
,
,
600—620
K2O
)
LiF.
,
[25]
LiF
,
,
525
.
[26]
(
0
5
,
470
).
,
–1
462, 487, 515
-
.
LiF
212
,
10
(
.
:
KCl:Li (1
1),
770 K
)
LiF—Li
462 574 622
. 3.
60
20
40
. %),
—
,
LiF:OH
490
,
2)
(
— 480
560
.
3)
,
[27]
.
,
,
,
,
,
F-
.
[9—11],
730
,
.
.
,
,
KCL:Li.
.
[24],
-
462
,
K°—Li°
,
-
29
4, 2011
.
FA(II)F2-
.
[31]
,
.
–
,
,
–
O2-Va+
,
204
–
+ O2 Va+
,
OH¯ + 2F.
0,74, . .
U.
500
KCl:Li,
.
[7]
496
200
1,5 .
-
0,102 [28],
–
215
,
,
-
,
FA(II)-
.
-
,
,
,
,
,
-
.
U.
,
U-
[1],
LiH+
[29].
LiH
-
.
Cl2
:
LiH + Cl2 = LiCl + HCl (400—450
.
).
-
,
[30]
,
,
.
.
Li+
U-
Cl
.
KCl:Li
,
.
600
-
FA(II)462 ,
,
(5—30
).
F-
.
FA(II),
-
-
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. .,
. .,
. .,
. .//
.
. 1984. T. 57. 5. . 956.
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V. 11. No. 1. P. 231.
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1953. V. 57. No. 8. P. 757.
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24.
. .,
. .,
. . //
. 1969. . 11. 5. . 1231.
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P. 1703.
26.
. . //
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30
4, 2011
27.
. .,
. . //
. 1970. . 12.
2. . 343.
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Phys. Rev. B. 1985. V. 31. No. 10. P. 6709.
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Physica Scripta. 1988. V. 37. No. 3. P. 381.
Degradation mechanism of a laser media on the base
of the KCl:Li-crystals
L. I. Bryukvina
Irkutsk Division of the Institute of Laser Physics, 130A Lermontova str., Irkutsk, 664033, Russia
E-mail: baikal@ilph.irk.ru
E. E. Penzina
Irkutsk State University, 20 Gagarin Blvd., Irkutsk, 664003, Russia
E-mail: penzina@api.isu.ru
The degradation mechanism of a laser-active media on the base of the KCl:Li-crystals with
FA(II) color centers during different stages of annealing has been studied. It is demonstrated that
the lithium colloids and quasi-metal potassium centers are appeared at first stages of annealing.
In the process of prolonged annealing, the mixed K—Li colloids are created and predominated n
the crystals.
PACS: 61.72.jn
Keywords: alkali-halide crystals, additive coloration, thermal annealing of crystals, lasers on color centers,
thermal degradation of a laser media.
Bibliography — 31 references.
Received September 23, 2010