Growth of KDP single crystal blocks in defined crystallographic direction

Salo, Vitaly I.; Voronov, A. P.; Ткаченко, В. Ф.; Babenko, G.N.; Makoveev, A.V.

doi:10.1016/j.jcrysgro.2011.10.001

Cited by 11 publications

(8 citation statements)

References 16 publications

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“…Extremely high optical and structural perfection of KDP makes it possible to produce elements for various non-linear optical and electro-optical properties such as frequency multipliers, optical parametric oscillators, electro-optical modulators, 3D optical data storage and pockels cells for mega-joule laser systems of the new generation [1][2][3][4][5][6]. The technology of large size KDP single crystal growing on the point seed by the method of slow cooling is having great practical importance because such crystals are widely used in very high-energy Nd-glass lasers used for inertial confinement fusion research.…”

Section: Introductionmentioning

confidence: 99%

Influence of amaranth dye on the growth and properties of KDP single crystal

Chandran¹,

Rajesh²,

Ramasamy³

2015

Materials Research Bulletin

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Section: Introductionmentioning

confidence: 99%

Influence of amaranth dye on the growth and properties of KDP single crystal

Chandran¹,

Rajesh²,

Ramasamy³

2015

Materials Research Bulletin

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“…At the same time, a lot work have been done to improve the yield and quality of KDP crystals by changing the growth method or seed orientation [17][18][19][20], He Youping and V.I. Salo have grown high quality and availability KDP crystals by using (101) plane seeds, the regeneration process can be avoided and the utilization can be increased up to 40%~70% for KDP and DKDP [21,22].…”

Section: Introductionmentioning

confidence: 99%

Rapid Growth of KDP Crystals in the [101] Direction

Qin

et al. 2020

Crystals

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KDP crystals have important applications in inertial confinement fusion. However, during the rapid growth of large-sized KDP crystals, inclusion is prone to occur. The existence of inclusion will lead to the reduction of crystal quality and utilization and even the end of the growth process. The generation of inclusion is related to the interaction between the crystal and the liquid flow. In this paper, we changed the hydrodynamic condition around the crystal by changing the crystal growth direction and achieve the rapid growth of [101] direction KDP crystals without inclusion at a low rotation rate. The utilization of the crystal was improved and the crystal has good optical transmittance, crystalline perfection and laser damage threshold. Meanwhile, atomic force microscopy was used to study the characteristics and changes of the micromorphology on (100) and (101) faces under different levels of supersaturation. The analysis results show that under high supersaturation, the uneven distribution of solutes and insufficient flow rate cause local macrosteps, two-dimensional step platforms and two-dimensional cores to form irregular structures with large slopes, thereby reducing the stability of the interface. This study will help to better understand the effect of the interaction between liquid flow and crystals on the formation of inclusion and guide the growth of KDP crystals.

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“…In this paper, we presented the effect of pH value on the KDP morphology and growth mechanism by using “point seeds” with a defined crystallographic direction of 59 degree to the Z axis, which has been applied to grow KDP crystals in larger scale . AFM and ATR‐IR were both applied to investigate the effect of pH value on the growth of (100) face of KDP single crystals.…”

Section: Introductionmentioning

confidence: 99%

Effect of pH value on the growth morphology of KH₂PO₄ crystal grown in defined crystallographic direction

Liu

Zhang

2015

Crystal Research and Technology

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KH2PO4 single crystals were grown in aqueous solution at different pH values by using “point seeds” with a defined crystallographic direction at 59 degree to the Z axis. Atomic Force Microscope (AFM) was applied to observe the surface morphology of (100) face. It was found that at the same supersaturation, the larger steps appeared at the lower pH value before appearance of 2D nucleus. We found that 2D nucleus was occurred at σ ≤ 0.04 when pH value is <2.8. The occurrence of 2D nucleus was caused by the decreasing step‐edge free energy with the decreasing of pH value in the growth solution. In this paper, we observed the morphologies of (100) faces of KDP crystals which grew in solutions with different pH values. 2D nucleuses appeared on the terrace of growth steps when pH value down to 2.8 and 3.2 at supersaturation of 0.04, while pH value down to 2.4, only 2D nucleation control the growth. Therefore, the pH value can change the growth mechanism of KDP crystals.

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Growth of KDP single crystal blocks in defined crystallographic direction

Cited by 11 publications

References 16 publications

Influence of amaranth dye on the growth and properties of KDP single crystal

Influence of amaranth dye on the growth and properties of KDP single crystal

Rapid Growth of KDP Crystals in the [101] Direction

Effect of pH value on the growth morphology of KH₂PO₄ crystal grown in defined crystallographic direction

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Growth of KDP single crystal blocks in defined crystallographic direction

Cited by 11 publications

References 16 publications

Influence of amaranth dye on the growth and properties of KDP single crystal

Influence of amaranth dye on the growth and properties of KDP single crystal

Rapid Growth of KDP Crystals in the [101] Direction

Effect of pH value on the growth morphology of KH2PO4 crystal grown in defined crystallographic direction

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Effect of pH value on the growth morphology of KH₂PO₄ crystal grown in defined crystallographic direction