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2001 Fiscal Year Final Research Report Summary

Nanometer Polarization Control Devices and Coherent Detection

Research Project

Project/Area Number 11450139
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 電子デバイス・機器工学
Research InstitutionShizuoka University

Principal Investigator

MINAKATA Makoto  Research Institute of Electronics, Shizuoka University, Professor, 電子工学研究所, 教授 (80174085)

Co-Investigator(Kenkyū-buntansha) 符 徳勝  産業技術総合研究所, 中部センター, 研究員
ISHIKAWA Kenji  Yokkaichi Univ. Professor, 総合政策学部, 教授 (50022140)
FU Desheng  National Institute of AIST Researcher
Project Period (FY) 1999 – 2001
KeywordsElectron Beam Irradiation / Charge Distribution Model / Nanometer Scale Domain Inversion / Second Harmonic Generation / P-E Hysteresis Curve / Threshold of Domain Inversion / LiTaO_3 / Interaction of Coulomb Force
Research Abstract

We Have been studying the formation of nanometer scale inversion domains in LiTaO_3 (LT) and LiNbO_3 (LN) using an electron beam (EB) irradiation and an external electric field applied method.
In this study, we have been obtained the following results ;
1) The Coulomb force caused by the electrons impinging into crystal by EB irradiation were measured. We led the equation for the interaction of Coulomb between a small dot and a surrounding ring (control-ring) which is drawn with various electronic densities before drawing of a small dot. Then we drawn the control-ring with same density and different size and compared the size of inverted pattern with the original designed one. There was good agreement with the pattern size as expected. It has been clear that the mechanism of LN and LT domain inversion corresponding to two method, and a few hundred nm inverted domain size has been successfully obtained by using the optical grade LN which where controlled suitable surface resistibility.
2) The coherent detection for imaging domain inversion of nanometer scale has been proposed. This system is composed of AFM unit and Piezo-active and Lock-in amp. units.
3) A high efficiency SHG blue light source was fabricated by using a new method called "Full Cover Electrode Method" of domain inversion.
4) A new structure (Back slot type) and the optimum design for LN traveling wave optical modulator are proposed. Modulation speed 40 Gbps, and driving voltage 2.8V was achieved.

  • Research Products

    (31 results)

All Other

All Publications (31 results)

  • [Publications] M.Minakata, et al.: "Observation of LiTaO3 Inverted Domains"Proceedings of Joint Int. Conf. on Advanced Science and Technology. 96-101 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Minakata, et al.: "A study on Electric Field Distribution Calculated by the SOR-method"Proceedings of Joint Int. Conf. on Advanced Science and Technology. 110-115 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Minakata, et al.: "High Efficiency SHG Blue Light Source by Using a Propagation-mode Control Method"Proceedings of Joint Int. Conf. on Advanced Science and Technology. 116-121 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 皆方 誠, 他: "固有モード制御高能率SHG青色光源に関する研究"静岡大学電子工学研究所研究報告. 34. 87-93 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 皆方 誠, 他: "SOR法による印加電界分布の計算に関する研究"静岡大学電子工学研究所研究報告. 34. 79-85 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 皆方 誠, 他: "高指数面NEA光電面の研究"静岡大学電子工学研究所研究報告. 34. 73-77 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 皆方 誠: "強誘電体の分極構造観察"応用物理. 69,5. 565-566 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Ishikawa, et al.: "Size-induced phase transition in PbTiO3 nanocrystals : Raman scattering study"Phys. Rev.. B62,. 3125-3130 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Minakata, et al.: "Effect of Control-Ring on LiTaO3 Domain Inversion by Electron Beam Irradiation"Proceedings of Joint Int. Conf. on Advanced Science and Technology. 4. 253-256 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Minakata: "Recent Progress of QPM-SHG blue light source, 40GHz high speed optical modulator and Large capacity optical memories"Imperial College in London Electric Engineering Seminer 256. ZB1. 21-40 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 皆方 誠: "ナノメータ分極制御と応用光デバイス"平成12年度電気関係学会東海支部連合大会. S6-6. 14-15 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 皆方 誠, 他: "ナノメータ分極制御とその応用デバイス"平成12年度東北大学電気通信研究所共同プロジェクト研究会論文集. Vol.5. 14-17 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] D.S.Fu, K.Ishikawa, M.Minakata, H.Suzuki: "Observation of Piezoelectric Relaxation in Ferroelectric Thin Films by Continuous Charge Integration"Jpn. j. Appl. Phys.. 40 Part 1 No.9B. 5683-5686 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] D.S.Fu, K.Ishikawa, M.Minakata, K.Kodaira, H.Suzuki: "Dielectric and Piezoelectric properties of Pb(Zr Ti)O 3-Pb(Mg Nb)O3 Multi-layer Thin Films"Ferroelectrics. 77,10. 1532-1534 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Minakata: "Active and Passive Optical Components for WDM Communication"SPIE SERIES. Vol.4532. 16-27 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] D.S.Fu, Y.Yoshimi, H.Suzuki, K.Ishikawa: "Dielectric and Piezoelectric, Ferroelectric, Piezoelectric Properties of Highly Oriented Pb(Zr Ti)O3 Thin Films"Proc. 1st Asian Meeting on Electroceramics. (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 皆方 誠: "40Gbps光変調器の現状と今後の動向"第3回光材料/応用技術研究会(光産業振興協会). (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] D.S.Fu, K.Ishikawa, M.Minakata, K.Kodaira, H.Suzuki: "Dielectric and Piezoelectric properties of Pb(Zr Ti)O3-Pb(Mg Nb)O3 Multi-layer Thin Films"10th Int. Meeting on Ferroelectricity. (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 皆方 誠: "光学材料ハンドブック,1.2電気光学効果・磁気光学効果"REALIZE INC.. 12 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 皆方 誠: "光学材料ハンドブック,4.1誘電体光変調器・光スイッチ"REALIZE INC.. 8 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M. Minakata: "Observation of LiTaO_3 Inverted Domains"Proceeding of Joint Int.l Conf. on Advanced Science and Technology. 96-101 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M. Minakata: "A Study on Electric Field Distribution Calculated by the SOR-method"Proceeding of Joint Int.l Conf. on Advanced Science and Technology. 110-115 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M. Minakata: "High Efficient SHG Blue Light Source by Using a Propagation-mode Control Method"Proceeding of Joint Int.l Conf. on Advanced Science and Technology. 116-121 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K. Ishikawa: "Size-induced Phase Transition in PdTiO3 Nanocrystals : Raman Scattering Study"Phys. Rev. B. 3125-3130 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M. Minakata: "Effect of Control-Ring on LiTaO_3 Domain Inversion by Electron Beam Irradiation"Proceeding of Joint International Conference on Advanced Science and Technology. 4. 253-256 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M. Minakata: "Recent Progress of QPM-SHG Blue Light Source, 40 GHz High Speed Optical Modulator and Large Capacity Optical Memories"Imperial College in London Electric Engineering Seminar. 256 ZB1. 21-40 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] D. S. Fu, K. Ishikawa, M. Minakata and H. Suzuki: "Observation of Piezoelectric Relaxation in Ferroelectric Thin Films by Continuous Charge Integration"Jpn. J. Appl. Phys.. 40. 5683-5686 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] D. S. Fu, K. Ishikawa, M. Minakata, K. Kodaira and H. Suzuki: "Dielectric and Piezoelectric properties of Pd(ZrTi)O_<3-> Pb(MgNb)O_3 Multi-layer Thin Films"Ferroelectrics. 77, 10. 1532-1534 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M. Minakata: "Active and Passive Optical Components for WDM Communication"SPIE SERIES. 4532. 16-27 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] D. S. Fu, Y. Yoshimi, H. Suzuki and K. Ishikawa: "Dielectric and Piezoelectric, Ferroelectric, Piezoelectric Properties of Highly Oriented Pb(TrTi)O_3 Thin Fims"Proc. 1st Asian Meeting on Electroceramics. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] D. S. Fu, K. Ishikawa, M. Minakata, K. Kodaira and H.Suzuki: "Dielectric and Piezoelectric Properties of Pd(ZrTi)O_<3->Pd(MgNb)O_3 Multi-layer Thin films"10th Int. Meeting on Ferroelectricity. (in press).

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

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Published: 2003-09-17  

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