<title>Effective technology for fabricating KDP, DKDP crystals to be used in high-energy lasers</title>

Abstract

The problem of creating of high effective technology to fabricate crystal elements for high-energy laser systems is observed. It is developped the principal technology, wich permits to grow crystals blanks with given shape, dimensions and orientation.The growth rates exceed the conventional ones by more then 1 0 times. The (1 0 1) orientation KDP crystal with dimensions 380 x 450 x 50mm has been obtained. The possibility ofuse skewed " elements is considered.

Спектральный Анализ Временного Изменения Скорости Как Подход К Определению Свой­ств Систем Позиционирования

“…Separately, a direct drive system was tested as a drive on the same rails and carriage supports (realization 3). A commercially комплексы для проведения целого ряда экспериментов по отработке технологий роста и покрытия кристаллов [1,2]. Нарушения скорости в процессе покрытия и обработки нелинейных кристаллов приводят к появлению неравномерности поверхности и покрытия нелинейных кристаллов.…”

“…Roughness of the positioning speed or feed stopping in experiments and technological processes leads to data distortion or to reduction in the quality of the final product. In the last few decades, IAP RAS has developed a technology for growing and processing KDP -DKDP crystals, and accordingly, research facilities have been created to performed a number of experiments on developing technologies for growing crystals and its coating [1,2]. Velocity deviations during such processes lead to defects appearance at surfaces of nonlinear crystals.…”

<title>Perspectives for creation of highly effective technology for fabricating KDP and KD*P crystals for ICF</title>

“…It has been shown in [3] that in a rapid-growth technology modification (the type I technology, fig.la) when growing by the wide face (101), one can obtain plates of the (101) orientation of the sizes 40x40x5 cm ( fig.2), which is sufficient for the so-called "skew" [3] elements. There has been also demonstrated the type II growth technology (fig.lb) -the growth by the narrow face (101) or (100).…”

“…The laboratory technology for rapid growth ofprofiled watersoluble crystals [1][2][3] seems to be the most promising basis for solving the problem. The crystal growth rate in the laboratory technology exceeds the growth rate in the traditional methods by more than an order, which in combination with profiled growth of samples with assigned orientation and sizes practically eliminating wastes in production of optical elements, (When fabricating optical elements of frequency conversion from crystals of natural shape typical of the traditional technology, wastes amount up to 60% even for type II elements which are most convenient for production.)…”

Rapid Growth of the Gradient Deuterium Deuterated Potassium Dihydrogen Phosphate Crystal

“…Therefore, oriented growth techniques must be selected. KDP crystals in type-I and type-II phase matching directions were directionally grown by Bespalov et al, , and their damage thresholds were tested. Liu et al grew KDP crystals using “point seeds” with a defined crystallographic direction of 59°.…”