Registration Number
0222U000830,
0121U110919
, R & D reports
Title
Y3Al5O12 crystal growth by the Czochralski method without iridium crucibles for production of active media of solid state lasers
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Head
Shekhovtsov Oleksii M., Доктор технічних наук
Registration Date
19-01-2022
Organization
Institute of Single Crystals of the National Academy of Sciences of Ukraine
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For growth of YAG:Nd single crystals by the Czochralski method modernization of growth set up "Donets" type equipped with inductive heating was carried out. Installation of a new unit-regulator of output power consisting of modern electron components was done. Control system was tuned for crystallization units containing graphite materials tungsten or molybdenum crucibles. A crystallization unit characterizes by axial temperature gradient ≥250-300 C / cm. It has been done for better melt convection and growth of crystals characterizing by higher Nd segregation coefficient. Experiments on crystal growth using tungsten and molybdenum crucibles were carried out. It is shown that at this stage of development the grown crystals are characterized by intensive absorption in the spectral ranges of 250 - 300, 350-400 and 450-550 nm due to interaction with graphite.
Product Description
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Vovk Oleg M.
Vovk Olena O.
Voloshyn Oleksandr V.
Gryn Leonid O.
Kryvonogov Sergiy I.
Kryvonosov Evgen V
Lukienko Oleg O
Nizhankovsky Sergei V.
Romanenko Andrii O.
Skorik Stanislav M.
Slunin Evgen V
Shekhvotsov Oleksii M.
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2022-03-09
