crystal carrier for kdp crystal growth

A crystal carrier and crystal-like technology, applied in the field of KDP-like crystal growth, can solve the problems of large disturbance of the growth solution, poor solution stability, unfavorable crystal growth, etc. Effect

Active Publication Date: 2017-10-20
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The upper and lower horizontal plates of the crystal carrier are both square plates. During the crystal growth process, the corners of the square rotate at a higher angular velocity when rotating, which disturbs the growth solution greatly, and the solution stability is poor, which is not conducive to the growth of the crystal. to grow

Method used

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Embodiment Construction

[0024] The crystal carrier for growing KDP crystals of the invention can help to rapidly grow high-quality KDP crystals. Taking the growth of small-sized KDP-like crystals as an example, such as figure 1 as shown, figure 1 It is a structural schematic diagram of a crystal carrier for growing KDP crystals in the present invention. It can be seen from the figure that the structure of a crystal carrier for growing KDP crystals in the present invention includes a connecting rod 2, an upper horizontal bar 3, a lower horizontal plate 4, and two side columns 5, 6 and two stirring pieces 7, 8. Take a stainless steel circular plate with a diameter of about 20 cm as the lower horizontal plate 4, then select a horizontal bar with a length equal to the diameter of the circular plate and a thickness of about 6 mm as the upper horizontal bar 3, and select two cylinders with a diameter of about 1 cm as side columns 5, 6. The height of the cylinder is determined by the actual height of the ...

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Abstract

A crystal carrier for the growth of KDP crystals, including upper horizontal bars, lower horizontal plates, two side columns, two stirring paddles and connecting rods, the two side columns and the two stirring paddles are on the same vertical plane, connected The rod is located in the middle of the upper horizontal bar, and the two stirring paddles are symmetrical about the connecting rod. Compared with the existing crystal carrier, the invention improves the fluidity of the solution, makes the distribution of the solute more uniform, and thus grows faster and grows more uniform and high-quality crystals.

Description

technical field [0001] The invention relates to the growth of KDP crystals, in particular to a crystal carrier for the growth of KDP crystals. Background technique [0002] In the early 1960s, after the emergence of laser technology, KDP / DKDP crystal materials were widely used in the production of Frequency doubling and electro-optic devices. The basic requirements of ICF devices for nonlinear optical materials are: [0003] 1. Wide transmission band (near ultraviolet to near infrared); [0004] 2. Large electro-optic coefficient and nonlinear optical coefficient; [0005] 3. High damage threshold; [0006] 4. Ultra-large diameter crystals; [0007] 5. Proper birefringence and low refractive index inhomogeneity. [0008] At present, KDP / DKDP crystals are the only nonlinear optical crystals that can meet the above five requirements, and are used to make Pockels cells and double and triple frequency periods in inertial confinement nuclear fusion devices. The national ig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B35/00
Inventor 邵建达谢晓义陈端阳齐红基易葵
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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