Main Cause of Surface Waveguides Formed under LiNbO₃ Crystal Surface during Thermal Treatment

• Koide Akira

  Nihon Kesso Koogaku Co., Ltd., 810–5 Nobe–cho, Tatebayashi, Gunma 374, Japan

• Shimizu Hajime

  Nihon Kesso Koogaku Co., Ltd., 810–5 Nobe–cho, Tatebayashi, Gunma 374, Japan

• Saito Toshihiko

  Nihon Kesso Koogaku Co., Ltd., 810–5 Nobe–cho, Tatebayashi, Gunma 374, Japan

書誌事項

タイトル別名

• Main Cause of Surface Waveguides Formed under LiNbO3 Crystal Surface during Thermal Treatment.
• Main Cause of Surface Waveguides Formed

抄録

The formation of a surface waveguide on LiNbO₃ crystals at about 1000^°C was examined by systematic experimentation with respect to the content of H₂O vapor in the heating atmosphere and OH^- ions contained in the crystals before heating. The thermal diffusion of OH^- ions led to the formation of inhomogeneous layers which had a refractive-index fluctuation around n _S. We concluded that the main cause of the surface waveguide formation was OH^- ions. The formation of a surface waveguide and its prevention by H₂O vapor are concluded to be regarded as the same mechanism.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 36 (1A), 239-242, 1997

  The Japan Society of Applied Physics

キーワード

• lithium niobate
• optical waveguide
• lithium outdiffusion
• hydroxyl ion
• thermal treatment
• crystal quality
• prism coupler method
• inhomogeneous layer

詳細情報

• CRID: 1390001206248367488
• NII論文ID: 10004360055
• NII論文ID: 210000040994
• NII論文ID: 130004523243
• NII書誌ID: AA10457675
• DOI: 10.1143/jjap.36.239
• ISSN: 13474065
• ISSN: 00214922
• NDL書誌ID: 4142460
• Web Site: http://id.ndl.go.jp/bib/4142460
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4142460
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.36.239
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.36.239/pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可