Abstract
Abstract It is shown that cracks formed in single crystals of neodymium-doped yttrium aluminium garnet single crystals, grown using the Czochralski technique, are associated with an anomalous incorporation of dope in cell boundaries which can lead to an impairment in the optical perfection of laser rods cut from these crystals. The morphology of the irregular dope distribution is described and a distribution coefficient of 0·21 ± 0·01 has been determined for neodymium in this material. Some aspects of cracking in undoped material are also discussed.
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