crystal carrier for kdp crystal growth

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...

AI Technical Summary

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

Images