光学用酸化物結晶の育成

概要

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Growth techniques of crystals for optical applications are reviewed. LiNbO_3 and LiTaO_3 for electro-optical devices are grown by the Czochralski method. KDP, LiNbO_3, KTP, and BBO for nonlinear optical applications are grown from aqueous solutions, melts and high temperature flux solutions. Garnets, sapphire and crysoberyl are main host crystals for lasers, and PbMoO_4 and TeO_2 are common crystals for acousto-optical applications. They are usually grown by the Czochralski method. Calcite and rutile provide polarizing elements and are grown, respectively, from either high temperature or hydrothermal solutions and from melts. Quartz crystals for phase plates are grown by the hydrothermal method. BaTiO_3, SBN and BSO are photorefractive and photoconductive crystals. BaTiO_3 is grown from high temperature solutions and the rest by the Czochralski method. The rare earth iron garnets give optical isolator elements. The bulk crystals are grown by the floating zone method and thin crystals by the liquid phase epitaxy. Crystals for scintillators, CdWO_4, Bi_4Ge_3O_12, and Ce: Gd_2SiO_5, are grown mostly by the Czochralski method. Al_2O_3 for windows is grown in a thin plate form and MgO for similar purposes by the electric fusion technique.
社団法人日本セラミックス協会の論文
1993-01-01