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2 032 193

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C1

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IPC

(21) (22)

Application

4875867/10, 1990-10-23

(22)

Actual filing date

1990-10-23

(45)

Published

1995-03-27

(72)

Inventor

Nepomnjashchikh A.I.Tokarev A.G.Figura P.V.Chernjago B.P.

(73)

Holder

Institut Geokhimii Im.A.P.Vinogradova So Ran

MATERIAL OF APOSIDIC DIAPHRAGM AND PROCESS OF ITS MANUFACTURE Russian patent published in 1995 - IPC

Abstract RU 2032193 C1

FIELD: laser systems. SUBSTANCE: material for aposidic diaphragm is produced on base of additively colored crystals of strontium fluoride containing Nd3+ which concentration amounts to 0,61·1017cm-3- 0,18·1015сm-3. Manufacturing process lies in that crystals SrF2-Nd3+ with content of Nd3+ in the amount of 0.5- 2.0 per cent by mass are additively reduced by their heating in autoclave in atmosphere of saturated vapors of calcium at temperature of 900-1000 C for the course of 1.5-2.5 h. EFFECT: improved control over laser radiation. 2 cl, 8 dwg

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RU 2 032 193 C1

Authors

Nepomnjashchikh A.I.

Tokarev A.G.

Figura P.V.

Chernjago B.P.

Dates

1995-03-27—Published

1990-10-23—Filed

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