An Increase of More Than 30% in the Electrooptic Coefficients of Fe-Doped and Ce-Doped Stoichiometric LiNbO₃ Crystals

• Kondo Yukiko

  Advanced Research Institute for Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan

• Fukuda Takeshi

  Graduate School of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan

• Yamashita Yuri

  Graduate School of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan

• Yokoyama Koichi

  Graduate School of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan

• Arita Kanji

  School of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan

• Watanabe Masato

  Graduate School of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan

• Furukawa Yasunori

  National Institute for Research in Inorganic Materials, 1-1 Namiki, Tsukuba 305-0044, Japan

• Kitamura Kenji

  National Institute for Research in Inorganic Materials, 1-1 Namiki, Tsukuba 305-0044, Japan

• Nakajima Hirochika

  Advanced Research Institute for Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan Graduate School of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan School of Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan

書誌事項

タイトル別名

• An Increase of More Than 30% in the Electrooptic Coefficients of Fe-Doped and Ce-Doped Stoichiometric LiNbO3 Crystals.
• Increase of More Than 30パーセント in the Electrooptic Coefficients of Fe Doped and Ce Doped Stoichiometric LiNbO3 Crystals

抄録

The composition dependences of the electrooptic coefficients in LiNbO₃ crystals and the influence of doping with Ce-ions and Fe-ions were measured precisely and investigated in detail for the first time. The electrooptic coefficient r₃₃ increases with an increase in the Li/Nb ratio. The r₃₃ in stoichiometric LiNbO₃ crystal was 1.14 times as large as that in conventional congruent LiNbO₃ crystal whose electrooptic coefficient is 32.6 pm/V. The electrooptic coefficient r₃₃ is also increased by doping with some ions. An increase of more than 30% in electrooptic coefficients (from those in nondoped congruent LiNbO₃) can be obtained by doping with Ce- or Fe-ions.<BR> The lattice constants are also measured. The lattice constant along the c-axis decreases with an increase in the Li/Nb ratio, or by doping with Ce- or Fe-ions, and in this way the crystal structure changes into a less symmetric structure. This may be the reason why the electrooptic coefficient increases with an increase in the Li/Nb ratio or by doping with Ce- or Fe-ions.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 39 (3B), 1477-1480, 2000

  The Japan Society of Applied Physics

キーワード

• LiNbO<FONT SIZE="-1"><SUB>3</SUB></FONT>
• electrooptic coefficient
• doping
• stoichiometric
• congruent

詳細情報

• CRID: 1390001206253994496
• NII論文ID: 110003908480
• NII論文ID: 130004527137
• NII論文ID: 210000046866
• NII書誌ID: AA10457675
• DOI: 10.1143/jjap.39.1477
• ISSN: 13474065
• ISSN: 00214922
• NDL書誌ID: 5344064
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5344064
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.39.1477
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.39.1477/pdf
• 本文言語コード: en
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可