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Refractive Indices in Undoped and MgO-Doped Near-Stoichiometric LiTaO3 Crystals.
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- Nakamura Masaru
- Advanced Materials Laboratory, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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- Higuchi Shinji
- Department of Materials Science and Technology, Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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- Takekawa Shunji
- Advanced Materials Laboratory, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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- Terabe Kazuya
- Advanced Materials Laboratory, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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- Furukawa Yasunori
- Oxide Corporation, 9633 Kobuchisawa, Kitakoma, Yamanashi 408-0044, Japan
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- Kitamura Kenji
- Advanced Materials Laboratory, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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Description
Undoped and MgO (0.5 and 1.0-mol%)-doped near-stoichiometric LiTaO3 (SLT) crystals were grown from off-congruent Li-rich solutions (Li∼ 60 mol%) by the double-crucible Czochralski method using a continuous SLT ceramic grain charging system. Curie temperatures of the undoped and MgO (0.5 and 1.0-mol%)-doped SLT crystals are 688, 694 and 695°C, respectively. The ordinary and extraordinary refractive indices (no, ne) of these crystals were measured by the prism coupling technique in the wavelength range from 0.440 to 1.050 μm at room temperature, and the temperature-independent Sellmeier equations for each crystal were derived from the measured refractive index data. no of the SLT crystal was almost the same as that of a congruent-melt LiTaO3 (CLT) crystal, while ne of the SLT crystal was lower than that of the CLT crystal. ne was lower than no for the SLT crystal, similar to as in the case of the LiNbO3 crystal. The refractive indices of the SLT crystal, no and ne, were found to be almost independent of MgO concentration at the doping level of 0.5 and 1.0 mol%.
Journal
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 41 (4B), L465-L467, 2002
The Japan Society of Applied Physics
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Keywords
Details 詳細情報について
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- CRID
- 1390282681231309184
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- NII Article ID
- 210000052788
- 110004081040
- 130004529421
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- NII Book ID
- AA10650595
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- ISSN
- 13474065
- 00214922
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- NDL BIB ID
- 6147673
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
- OpenAIRE
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- Abstract License Flag
- Disallowed
