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A method for controlling the growth of garnet crystal nuclei

A technology for crystal nucleus growth and garnet is applied in the field of controlling the growth of garnet crystal nucleus, which can solve the problems of poor secondary symmetry and small diameter of crystal slats.

Active Publication Date: 2021-03-30
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for controlling the growth of garnet crystal nuclei, so as to solve the problems of small caliber of crystal slabs after growth and poor quadratic symmetry in the prior art garnet seed crystal growth method

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  • A method for controlling the growth of garnet crystal nuclei
  • A method for controlling the growth of garnet crystal nuclei
  • A method for controlling the growth of garnet crystal nuclei

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Embodiment Construction

[0021] The invention is further illustrated below with reference to the accompanying drawings and examples.

[0022] A method for controlling garnet crystal crystal growth, using a rectangular or square crucible and generates garnet seed crystal based on induction heating portrait, pulling the 坩 坩, 坩, thermal insulation device, garnet seed crystal geometry The vertical center axis of the shape is located on the same straight line, and the center of the crucible is used as the coordinate original O, in the direction of the cross section of the crucible, in the direction of the other side of the 坩 坩 horizontal cross section, the direction of the other side of the X-axis is Z The axis, establishes a three-dimensional coordinate system in the vertical direction, such as figure 2 Indicated.

[0023] Control the [110] direction of garnet seed crystals or in the direction equivalent to the direction of the [110] is consistent with the Y-axis negative direction, and the garnet seed cryst...

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Abstract

The invention discloses a method for controlling growth of garnet crystal nuclei. According to the method, a seed crystal of which the longitudinal direction is in a [110] direction or an equivalent direction is used, a rectangular crucible lifting method is implemented, directions [001] and [110] of the seed crystal are respectively parallel to two sides of the rectangle of the cross section of arectangular crucible, then the purpose that crystal nuclei of a grown crystal are parallel to a large area of plate crystal blank is achieved, and wide-diameter plate crystal elements can be conveniently cut. For a circular crucible lifting method, only a seed crystal in a direction [110] or an equivalent direction needs to be orientated as a growth direction, and due to the crystal nuclei in secondary symmetric distribution on the cross section of a crystal blank, wide-diameter plate elements can be conveniently processed.

Description

Technical field [0001] The present invention relates to the field of crystal growth methods, in particular a method of controlling garnet crystalline growth. Background technique [0002] Garnet is an important crystal, which is important in the fields of laser, flicker, substrate, and magnetine. Among them, yttrium aluminum garnet (Y 3 Al 5 O 12 Simply written as YAG) is a well-known laser medium, from small power to high power, extensive applications from continuous to pulse solids; secondly, borborne garnet (GD 3 GA 5 O 12 , Short-handed GGG) is both excellent substrate crystals, also a good laser matrix; gallium garnet (TB 3 GA 5 O 12 , Is abbreviated as TGG) is a magneto-optical crystal having excellent performance. [0003] The preparation of large diameter and high utilization of garnet crystalline components is an important requirement for high-power solid lasers and its improvement efficiency and cost performance. An invention of an application is disclosed, disclosed wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B15/10C30B15/36C30B15/20C30B29/28
CPCC30B15/10C30B15/20C30B15/36C30B29/28
Inventor 张庆礼王小飞张德明窦仁勤刘文鹏高进云孙贵花罗建乔殷绍唐
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI