| Project/Area Number |
06452126
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
ITO Ryoichi The University of Tokyo Graduate School, Division of Engineering, Professor, 大学院・工学系研究科, 教授 (40133102)
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| Co-Investigator(Kenkyū-buntansha) |
KONDO Takashi Univ.of Tokyo, Graduate School, Division of Engineering, Research Associate, 大学院・光学系研究科, 助手 (60205557)
FUKATSU Susumu Univ.of Tokyo, Coll.of Arts & Sci., Assistant Professor, 教養学部, 助教授 (60199164)
SHIRAKI Yasuhiro Univ.of Tokyo, RCAST,Professor, 先端科学技術研究センター, 教授 (00206286)
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| Project Period (FY) |
1994 – 1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Budget Amount *help |
¥7,500,000 (Direct Cost: ¥7,500,000)
Fiscal Year 1995: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1994: ¥5,500,000 (Direct Cost: ¥5,500,000)
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| Keywords | Nonlinear Optics / Heterostrucure / Frequency Conversion / Second-Harmonic Generation / Organic Material / Semiconductor / Quasi Phase Matching |
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| Research Abstract |
1.NLO Properties of Semiconductor Heterostructures
We have measured nonlinear optical coefficient of GaAs, AlGaAs, GaP,AlGaP,ZnSe, and CdTe by the Maker-fringe technique and the reflected second-harmonic ellipsometry. Ga-ion-implanted GaP and 3C-SiC grown on Si (100) substrate have been also characterized. Nonlinear optical coefficient of the ion-implanted GaP has been proved to only 10% of that of GaP single crystal. We have also shown that macroscopic nonlinear optical coefficient of 3C-SiC/Si vanishes because of its anti-phase domain structure.
2.Organic Heterostrucure Waveguide Device
A new fabrication method of organic-crystal/polymer heterostructure waveguides has been developed. Using DMNP or MBANP as a nonlinear optical crystal and a polyimide as an SHG-inactive polymer. we have fabricated organic heterostructure waveguid SHG devices for quasi phase matching. SHG experients have shown that quasi phase matching has been achieved in the organic heterostrucure device.
3.Broad-Band Quasi Phase Matching
We have developed a optimization scheme of the broad-band quasi phase matching by simulated annealing. Broad-band second-harmonic generation in quasi-phase-matched LiNbO_3 waveguide has been demonstrated.
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