1998 年 25 巻 3 号 p. A6-
We have grown stoichiometric LiTaO_3 single crystals by using the Double-Crucible Czochralski method equipped with an automatic powder supply system. Investigations of optical properties of LiTaO_3 demonstrate that LiTaO_3 has great potential as an optimum photorefractive material for short wavelength laser applications.