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2003 Fiscal Year Final Research Report Summary

常温ホールバーニングを利用した広波長域型光メモリーガラスの創製

Research Project

Project/Area Number 13305048
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Inorganic materials/Physical properties
Research InstitutionNagoya Institute of Technology

Principal Investigator

NOGAMI Masayuki  Nagoya Institute of Technology, Faculty of Engineering, Professor, 工学研究科, 教授 (90198573)

Co-Investigator(Kenkyū-buntansha) NARUSE Norio  National Institute of Advanced Industrial Science and Technology, Senior Researcher, 関西センター, 主任研究員
HAYAKAWA Tomokatsu  Nagoya Institute of Technology, Faculty of Engineering, Research Associate, 工学研究科, 助手 (00293746)
Project Period (FY) 2001 – 2003
KeywordsHole burning / Glass / Rare earth / Memory / Sol-gel
Research Abstract

Persistent spectral hole burning (PSHB) phenomenon of Eu^<3+> and Sm^<2+> ions is one of the most significant optical properties for use in high-density frequency-domain optical data memory. For practical use, high temperature PSHB and stable hole are required. As a host material, glasses are thought to be more favorable than crystals, because of their wide inhomogeneous width, compositional variety and easy mass production. In this work, we studied the preparation of PSHB glasses doped with Eu^<3+> and Sm^<2+> ions using a sol-gel method and the PSHB properties of these glasses treated with different conditions. The conclusions of our research are summarized as follows ;
(1) PSHB was observed on the excitation spectra of the ^7F_0→^5D_0 transition of the Eu^<3+> and Sm^<2+> ions-deped glasses.
(2) The efficiency of hole-burning, burned at low temperature 〜77K, was proportionally increased with the content of OH groups surrounding the rare-earth ions. The proposed mechanism for hole-burn … More ing was the optically activated rearrangement of the OH bonds surrounding the rare-earth ions. The burned-hole was thermally refilled and erased above 〜200K.
(3) The glasses obtained by heating in H_2 gas showed PSHB up to room temperature. When heated in H_2 gas, the H_2 molecules react with oxygen ions to form H_2O. Removal of the generated H_2O causes the number of oxygen ions surrounding rare-earth ions to decrease, resulting into the reduction of the ions. The hole burning in the H_2-treated, glasses was performed by the electron transfer between the rare-earth ions and the trapping centers.
(4) The glasses which were irradiated with x-ray also showed room temperature PSHB. It was found that the rare-earth ions are reduced into the divalent state by electron transfer from the oxygen defect center. The hole defect centers are trapped in oxygen ions bound with Al^<3+> ions. The spectral hole burning of the x-ray irradiated glasses could be burned by the reverse reaction of the reduction of the rare-earth ions. A short distance between the Sm^<2+> and oxygen defect centers brought a high-speed hole burning, that is, 30 times faster than in a similar H_2 gas treated glass. This fast formation of PSHB was contributed to the formation of the Sm^<2+> and hole center in oxygen ions.
(5) PSHB was also observed in the femtosecond laser-irradiated Sm^<2+> ions-doped Al_2O_3-SiO_2 glasses. The hole-burning efficiency was superior to that of Sm^<2+> ions in the H_2-treated glasses and comparable to that in x-ray irradiated glasses. prepared by the sol-gel method.
(6) Two different mechanisms were proposed for the PSHB in the Sm^<2+>-doped Al_2O_3-SiO_2 glasses. In the H_2-gas treated glass, the Sm^<2+> ions are stable to bond with the defect free oxygen ions. PSHB is formed by the ionization of the Sm^<2+> and the capture of the released-electron in the Sm^<3+> ions. On the other hand, in the x-ray or laser irradiated glass, the electrons excited from the Sm^<2+> are trapped in the hole-centers in the neighboring oxygen. A short distance between the Sm^<2+> and the oxygen defect center makes fast hole formation. These fast and high efficient hole burning glass become possible to realize high density memory. Less

  • Research Products

    (61 results)

All Other

All Publications (61 results)

  • [Publications] Masayuki Nogami: "Optical bistability of stimulated emission lines in Sm^<3+>-doped glass microspheres"Optical Lett.. 26. 84-86 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Room-temperature persistent spectral hole burning of Eu^<3+> coupling with Al^<3+> in glass"Phys.Rev., B. 63. 104205-1-104205-6 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Fluorescence properties of Eu-doped GeO_2-SiO_2 glass heated under an H_2 atmosphere"J.Lumin.. 92. 329-336 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Spectral hole burning of Eu^<3+-> doped Al_2O_3-SiO_2 glass prepared by melt-quenching"Optics Communications. 193. 234-244 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Energy migration of the local excitation at the Eu^<3+> site in a Eu-O chemical cluster in sol-gel derived SiO_2 : Eu^<3+> glasses"J.Non-cryst.Solids. 90. 2200-2205 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Enhanced fluorescence from Eu^<3+>-doped silica gels by adsorbed CDS nanoparticles"J.Appl.Phys.. 291. 137-141 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Room-temperature spectral hole burning of Eu^<3+>-doped Al_2O_3-SiO_2 glasses treated with H_2 gas and X-ray"SPIE. 4282. 50-56 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Photonic glasses : nonlinear optical and spectral hole burning properties"Handbook of Advanced Electronic and Photonic Materials and Devices, edited by H.S.Nalwa. 5. 141-162 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Defect centers and room temperature persistent spectral hole burning in X-ray irradiated Eu^<3+>-doped glass"J.Lumin.. 96. 163-169 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Room-temperature hole-burning and sublinear hole-growth dynamics in an Sm^<2+>-doped aluminosilicate glass"J.Non.Cryst.Solids. 297. 113-119 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Enhanced fluorescence of Eu^<3+> induced by energy transfer from nanosized SnO_2 crystals in glass"J.Lumin.. 97. 147-152 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Formation of Sm^<2+> ions and spectral hole burning in x-ray irradiated glasses"J.Phys.Chem., B. 106. 5395-5399 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Nanocrystalline SnO_2 particles and two fold-coordinated Sn defect centers in sol-gel-derived SnO_2-SiO_2 glasses."J.Mater.Res.. 17. 1305-1311 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Fast spectral hole burning in Sm^<2+>-doped Al_2O_3-SiO_2 glasses"Adv.Mater.. 14. 923-926 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Room temperature persistent spectral hole burning of Eu^<3+> ions doped in sol-gel derived glasses"J.Lumin.. 98. 289-294 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Redox equilibrium and spectral hole burning in Sm^<2+>-doped Al_2O_3-SiO_2 glasses"J.Mater.Res.. 17. 2053-2058 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Water can functionalize the sol-gel-derived glasses"J.Ceram.Soc.Japan. 110. 796-800 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Spectral hole burning of rare-earth ions doped in Al_2O_3-SiO_2 glass"SPIE. 4804. 115-120 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami, Tomotatsu Hayakawa: "Room temperature persistent spectral hole-burning in sol-gel-derived glasses doped with Eu^<3+> ions"J.Sol-Gel Sci.Technol.. 26. 1001-1004 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tomotatsu Hayakawa, Masayuki Nogami: "White light emission from radical carbonyl-terminations in Al_2O_3-SiO_2 porous glasses with high luminescence quantum efficiencies"Appl.Phys.Lett.. 82. 2975-2977 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tomotatsu.Hayakawa, Masayuki Nogami: "Formation of Sm^<2+> ions in femtosecond laser excited Al_2O_3-SiO_2 glasses"J.Phys. : Condens.Matter. 15. 1259-1265 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami, Tomotatsu Hayakawa: "Optical nonlinearity of glass containing nano-particle CdS and SnO_2 : Eu^<3+>"Int.J.Mater.Prod.Technol.. 18. 283-295 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Laser precipitation of SnO_2 nanocrystals in glass and energy transferred-fluorescence of EU^<3+> ions"J.Non-cryst.Solids. 330. 264-267 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Laser induced SnO_2 crystallization and fluorescence properties in Eu^<3+>doped-SnO_2-SiO_2 glasses"Phys.Rev.B. 68. 104204/1-104204/7 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Persistent spectral hole burning in rare-earth ions-doped glasses (Invited paper)"SPIE, (ISPG2002). 5061. 164-168 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tomotatsu Hayakawa, Masayuki Nogami: "Dynamical Faraday rotation properties of highly Tb_2O_3-concentrated borate glasses"SPIE, (ISPG2002). 5061. 193-197 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Gil Jae Park, Tomotatsu.Hayakawa, Masayuki.Nogami: "Spectral hole burning and fluorescence in femtosecond laser induced Sm^<2+>-doped glasses"J.Lumin.. 106. 103-108 (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hongpeng.You, Masayuki.Nogami: "Local structure and persistent spectral hole burning of the Eu^<3+> ion in SnO_2-SiO_2 glass containing SnO_2 nanocrystals"J.Appl.Phys.. 95. 2781-2785 (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hongpeng.You, Masayuki.Nogami: "Three-photon-excited fluorescence of Al_2O_3-SiO_2 glass containing Eu^<3+> ions by femtosecond laser irradiation"Appl.Phys.Lett.. 84. 2076-2078 (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tomokatsu.Hayakawa, Kazunori.Furuhashi, Masayuki.Nogami: "Local-field enhancement influenced on Eu^<3+> fluorescence in the vicinity of au Nanoparticles in sol-gel derived B_2O_3-SiO_2 glass"J.Cer.Soc.Japan. (in press). (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 野上 正行: "希土類イオン付活永続性ホールバーニング材料の開発"Intermaterial, 6. 6 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Masayuki Nogami: "Optical bistability of stimulated emission lines in Sm^<3+>-doped glass microspheres"Optical Lett.. 26. 84-86 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Room-temperature persistent spectral hole burning of Eu^<3+> coupling with Al^<3+> in glass"Phys.Rev., B. 63. 104205-1-104205-6 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Fluorescence properties of Eu-doped GeO_2-SiO_2 glass heated under an H_2 atmosphere"J.Lumin.. 92. 329-336 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Spectral hole burning of Eu^<3+>-doped Al_2O_3SiO_2 glass prepared by melt-quenching"Optics Communications. 193. 234-244 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Energy migration of the local excitation at the Eu^<3+> site in a Eu-O chemical cluster in sol-gel derived SiO_2:Eu^<3+> glasses"J.Non-cryst.Solids. 90. 2200-2205 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Enhanced fluorescence from Eu^<3+>-doped silica gels by adsorbed CDS nanoparticles"J.Apply, Phys.. 291. 137-141 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Room-temperature spectral hole burning of Eu^<3+>-doped Al_2O_3-SiO_2 glasses treated with H_2 gas and X-ray"SPIE. 4282. 50-56 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Photonic glasses : nonlinear optical and spectral hole burning properties"Handbook of Advanced Electronic and Photonic Materials and Devices (edited by H.S.Nalwa.). 5. 141-162 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Defect centers and room temperature persistent spectral hole burning in X-ray irradiated Eu^<3+>-doped glass"J.Lumin.. 96. 163-169 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Room-temperature hole-burning and sublinear hole-growth dynamics in an Sm^<2+>-doped aluminosilicate glass"J.Non-Cryst.Solids. 297. 113-119 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Enhanced fluorescence of Eu^<3+> induced by energy transfer from nanosized SnO_2 crystals in glass"J.Lumin.. 97. 147-152 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Formation of Sm^<2+> ions and spectral hole burning in x-ray irradiated glasses"J.Phys.Chem., B. 106. 5395-5399 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Nanocrystalline SnO_2 particles and two fold-coordinated Sn defect centers in sol-gel-derived SnO_2-SiO_2 glasses."J.Mater.Res.. 17. 1305-1311 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Fast spectral hole burning in Sm^<2+>-doped glasses"Adv.Mater.. 14. 923-926 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Room temperature persistent spectral hole burning of Eu^<3+> ions doped in sol-gel derived glasses"J.Lumin.. 98. 289-294 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Redox equilibrium and spectral hole burning in Sm^<2+>-doped Al_2O_3-SiO_2 glasses"J.Mater.Res.. 17. 2053-2058 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Water can functionalize the sol-gel-derived glasses"J.Ceram Soc.Japan. 110. 796-800 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Spectral hole burning of rare-earth ions doped in Al_2O_3-SiO_2 glass"SPIE. 4804. 115-120 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami, Tomotatsu Hayakawa: "Room temperature persistent spectral hole-burning in sol-gel-derived glasses doped with Eu^<3+> ions"J.Sol-Gel Sci.Technol.. 26. 1001-1004 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tomotatsu Hayakawa, Masayuki Nogami: "White light emission from radical carbonyl-terminations in Al_2O_3-SiO_2 porous glasses with high luminescence quantum efficiencies"Appl.Phys.Lett.. 82. 2975-2977 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tomotatsu Hayakawa, Masayuki Nogami: "Formation of Sm^<2+>ions in femtosecond laser excited Al_2O_3-SiO_2 glasses"J.Phys.Condens.Matter. 15. 1259-1265 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami, Tomotatsu Hayakawa: "Optical nonlinearity of glass containing nano-particle CdS and SnO_2:Eu^<3+> ions"Int.J.Mater.Prod.Technol.. 18. 283-295 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Laser precipitation of SnO_2 nanocrystals in glass and energy transferred-fluorescence of Eu^<3+> ions"J.Non-cryst.Solids. 330. 264-267 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Laser induced SnO_2 crystallization and fluorescence properties in Eu^<3+>-doped-SnO_2-SiO_2 glasses"Phys.Rev.B. 68. 104204-1-104204-7 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Masayuki Nogami: "Persistent spectral hole burning in rare-earth ions-doped glasses (Invited paper)"SPIE, (ISPO 2002). 5061. 164-168 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tomotatsu Hayakawa, Masayuki Nogami: "Dynamical Faraday rotation properties of highly Tb_2O_3-concentrated borate glasses"SPIE, (ISPG 2002). 5061. 193-197 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Gil Jae Park, Tomotatsu Hayakawa, Masayuki Nogami: "Spectral hole burning and fluorescence in femtosecond laser induced Sm^<2+>-doped glasses"J.Lumin.. 106. 103-108 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hongpeng You, Masayuki Nogami: "Local structure and persistent spectral hole burning of the Eu^<3+> ion in SnO_2-SiO_2 glass containing SnO_2 nanocrystals"J.Appl.Phys.. 95. 2781-2785 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hongpeng You, Masayuki Nogami: "Three-photon-excited fluorescence of Al_2O_3-SiO_2 glass containing Eu^<3+> ions by femtosecond laser irradiation"Appl.Phys.Lett.. 84. 2076-2078 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tomotatsu Hayakawa, Kazunori Furuhashi, Masayuki Nogami: "Local-field enhancement influenced on Eu^<3+> fluorescence in the vicinity of au Nanoparticles in sol-gel derived B_2O_3-SiO_2 glass"J.Cer.Soc.Japan. (in press). (2004)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2005-04-19  

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