Affiliation:
1. China Hebei United University
2. Hebei United University
Abstract
Near-stoichiometric lithium tantalite (LiTaO3) crystals were grown by the top-seed solution pulling method in congruent melt with the addition of K2O. The crystals were characterized by measurement of the ultraviolet absorption edge, ability of photo-damage resistance, and the domain structure analysis. Compared with the congruent crystal shows that, the ultraviolet absorption edge of the near-stoichiometric crystals has a blue shift towards a shorter wavelength and curie temperature is also improved; the domain structure of near-stoichiometric LiTaO3 crystals is hexagonal; and the photo-damage resistance of the crystals is greatly improved.
Publisher
Trans Tech Publications, Ltd.
Reference5 articles.
1. Shi Lihong, Kong Yongfa, Yan Bowen, et al. J. Synth. Cryst. Vol. 34 No. 6 (2005), pp.1024-1029.
2. Philipp Dittrich, Germano Montemezzani, Masayuki Habu, et al. Opt. Commun. Vol. 234 (2004), pp.131-136.
3. Y. Furukawa, K. Kitamura, K. Niwa, et al. Jpn. J. Appl. Phys. Vol. 38 (1999), pp.1816-1820.
4. C. H. Bamer, C. David, A. Tunyagi, et al, J. Appl. Phys. Vol. 93 No. 5 (2003), pp.3102-3106.
5. S. Kumaragurubaran, S. Takekawa, M. Nakamura, et al. J. Crysl. Growth. Vol. 285 (2005), pp.88-95.