Fabrication of high quality Rare Earth doped transparent Aluminum polycrystal and their characterization

• Project/Area Number: 15K18207
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Inorganic materials/Physical properties
• Research Institution: Kitami Institute of Technology
• Principal Investigator: FURUSE HIROAKI 北見工業大学, 工学部, 助教 (50506946)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 透明セラミックス / 高出力レーザー / パルス通電加圧焼結 / 放電プラズマ焼結 / アルミナ / イッテルビウム / 透光性アルミナ / レーザー / セラミックス / 透光性セラミック / 蛍光体

Outline of Final Research Achievements

For next generation high power optical devises, we developed rare earth(Yb)-doped transparent Al2O3 polycrystalline ceramics. Pulsed electric current sintering, which enables densification at lower temperature and shorter sintering time, was used for sintering, and the resultant optical properties, crystal structure, and microstructure were analyzed. From this study, we obtained high quality Yb(0.2 at.%):Al2O3 polycrystalline ceramics with in-line transmittance of 55% without any second phases. The average grain size was about 200 nm, and Yb elements were observed to segregate along the grain boundaries. On the basis of the present results, we will optimize the powder-processing methods and sintering conditions for obtaining further high doping concentrations and optical properties in the future.

Research Products

• [Journal Article] Transparent ultrafine Yb3+:Y2O3 laser ceramics fabricated by spark plasma sintering (2017)
  • Author(s): Furuse Hiroaki、Nakasawa Shunsuke、Yoshida Hidehiro、Morita Koji、Suzuki Tohru S.、Kim Byung-Nam、Sakka Yoshio、Hiraga Keijiro
  • Journal Title: Journal of the American Ceramic Society Volume: 101 Issue: 2 Pages: 694-702
  • DOI: 10.1111/jace.15232
  • Peer Reviewed
• [Journal Article] Magneto-optical characteristics of holmium oxide (Ho2O3) ceramics (2017)
  • Author(s): Hiroaki Furuse and Ryo Yasuhara
  • Journal Title: Optical Materials Express Volume: 7 Issue: 3 Pages: 827-833
  • DOI: 10.1364/ome.7.000827
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] High Verdet constant of Ti-doped terbium aluminum garnet (TAG) ceramics (2016)
  • Author(s): Hiroaki Furuse, Ryo Yasuhara, Keijiro Hiraga, and Shengming Zhou
  • Journal Title: OPTICAL MATERIALS EXPRESS Volume: 6 Issue: 1 Pages: 191-196
  • DOI: 10.1364/ome.6.000191
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] 透光性Yb3+:YAG微結晶セラミックスの開発 (2018)
  • Author(s): 根津優樹，古瀬裕章，藤岡加奈，宮永憲明，川村みどり，吉田英弘，森田孝治，鈴木達，金炳男，目義雄，平賀啓二郎
  • Organizer: 第65回応用物理学会 春季学術講演会
• [Presentation] Yb添加透光性アルミナ多結晶セラミックスの開発 (2018)
  • Author(s): 古瀬裕章，中沢俊亮，森田孝治，吉田英弘，鈴木達，金炳男，目義雄，平賀啓二郎
  • Organizer: 第65回応用物理学会 春季学術講演会
• [Presentation] Luminescent properties of (Yb,Y)2O3 transparent ceramics prepared by spark plasma sintering method (2017)
  • Author(s): S. Kurosawa, H. Furuse, K. Fujioka, A. Yamaji, K. Harata, P. Jan, S. Yamato, S. Kodama, Y. Ohashi, K. Kamada, Y. Yokota, A. Yoshikawa, A. Onishi, and M. Kitaura
  • Organizer: Joint conference Phosphor Safari and The SIXTH International Workshop on Advanced Spectroscopy and Optical Materials
  • Int'l Joint Research
• [Presentation] 放電プラズマ焼結法を用いた透光性Yb:Y2O3セラミックレーザーの開発 (2017)
  • Author(s): 古瀬裕章、中沢俊亮、吉田英弘、森田孝治、鈴木達、金炳男、目義雄、平賀啓二郎
  • Organizer: 第64回応用物理学会春季学術講演会
• [Presentation] 放電プラズマ焼結法を用いた透光性YAG セラミックスの開発 (2017)
  • Author(s): 厳佳月，根津優樹，古瀬裕章，藤岡加奈，宮永憲明，川村みどり，吉田英弘，森田孝治，鈴木達，金炳男，目義雄，平賀啓二郎
  • Organizer: 第64回応用物理学会春季学術講演会
• [Presentation] パルス通電加圧焼結による透光性Yb:Y2O3レーザーの開発 (2017)
  • Author(s): 古瀬裕章，中沢俊亮，吉田英弘，森田孝治，鈴木達，金炳男，目義雄，平賀啓二郎
  • Organizer: 日本セラミックス協会 2017年年会
• [Presentation] パルス通電加圧焼結による共沈法YAG粉体の緻密化および透明化 (2017)
  • Author(s): YAN JIAYUE，根津優樹，古瀬裕章，川村みどり，平賀啓二郎，藤岡加奈，宮永憲明，吉田英弘，森田孝治，鈴木達，金炳男，目義雄
  • Organizer: 日本セラミックス協会 2017年年会
• [Presentation] パルス通電加圧焼結法で合成した透光性Yb3+:YAGレーザーセラミックス (2017)
  • Author(s): 根津優樹，古瀬 裕章，川村みどり，藤岡加奈，宮永憲明，吉田英弘，森田孝治，鈴木達，金炳男，目義雄，平賀啓二郎
  • Organizer: 日本セラミックス協会 第30回秋季シンポジウム
• [Presentation] Fabrication of Yb:Y2O3 ceramics by spark plasma sintering (2016)
  • Author(s): H. Furuse, S. Nakasawa, H. Yoshida, K. Morita, T.S. Suzuki, B.N. Kim, M. Kawamura, Y. Sakka, and K. Hiraga
  • Organizer: 12th Laser Ceramics Symposium 2016
  • Place of Presentation: Saint-Louis, France
  • Year and Date: 2016-11-28
  • Int'l Joint Research
• [Presentation] Thermo-optic properties of ceramic YAG and TGG for high-average power lasers (2015)
  • Author(s): H. Furuse, K. Umetsu, R. Yasuhara, and K. Hiraga
  • Organizer: 11th Laser Ceramics Symposium
  • Place of Presentation: Xuzhou, China
  • Year and Date: 2015-11-30
  • Int'l Joint Research / Invited
• [Presentation] Temperature dependence of magneto-optic effect in a Ti-doped terbium aluminum garnet (TAG) ceramic (2015)
  • Author(s): H. Furuse, R. Yasuhara, K. Hiraga, and S. Zhou
  • Organizer: Advanced Solid-State Lasers (ASSL) 2015
  • Place of Presentation: Berlin, Germany
  • Year and Date: 2015-10-04
  • Int'l Joint Research