Growth and Optical Homogeneity of Hf:Mn:Fe:LiNbO3 Crystals with Various ［Li］/［Nb］ Ratios
The Hf:Mn:Fe:LiNbO3 crystals were grown with various ［Li］/［Nb］ ratios (0946, 105, 120 and 138) by the Czochralski method In order to explain the influence of different ［Li］/［Nb］ ratios for the defect structure of Hf:Mn:Fe:LiNbO3 crystals, the segregation coefficients of the Hf4+, Fe3+ and Mn2+ ions...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Harbin University of Science and Technology Publications
2020-06-01
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| Series: | Journal of Harbin University of Science and Technology |
| Subjects: | |
| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1767 |
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| Summary: | The Hf:Mn:Fe:LiNbO3 crystals were grown with various ［Li］/［Nb］ ratios (0946, 105, 120 and 138) by the Czochralski method In order to explain the influence of different ［Li］/［Nb］ ratios for the defect structure of Hf:Mn:Fe:LiNbO3 crystals, the segregation coefficients of the Hf4+, Fe3+ and Mn2+ ions in the crystals were carried out with an inductively coupled plasmaatomic emission spectrometer, and we analyze the optical homogeneity of Hf:Mn:Fe:LiNbO3 crystals by the birefringence gradient method The result show that the segregation coefficients of the Hf4+ ions increase to 10 nearly when ［Li］/［Nb］ ratios is 138, and the ［Li］/［Nb］ ratios of increase in the crystal with the ［Li］/［Nb］ ratios increase in the melt Hf:Mn:Fe:LiNbO3 crystals have better optical homogeneity when ［Li］/［Nb］ ratios achieve 138 This experimental result is explained by the occupancy mechanism of LiNbO3 crystals and lithium vacancy defect |
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| ISSN: | 1007-2683 |