2015 Fiscal Year Final Research Report
Study on implementation of ferroelectric crystal nano-waveguides and nano-integrated nonlinear quantum photonic devices
Project/Area Number |
26600116
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Optical engineering, Photon science
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Research Institution | Osaka University |
Principal Investigator |
Suhara Toshiaki 大阪大学, 工学(系)研究科(研究院), 教授 (90116054)
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Project Period (FY) |
2014-04-01 – 2016-03-31
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Keywords | 光制御 / 非線形光学デバイス |
Outline of Final Research Achievements |
Experimental work was performed on the titled subject. Techniques were established for formation of LiNbO3 channel waveguides by surface-activated direct bonding, slicing with He ion implantation and proton-exchange-accelerated chemical etching. Channel waveguides of 0.7×1.0 squared micron cross section and a nonlinear-optic coupling coefficient one order of magnitude larger than that of conventional waveguides were obtained. Formation of quasi-phase matching (QPM) structures was accomplished by domain inversion with charge-controlled pulse voltage application to implement nano-waveguide QPM nonlinear optic wavelength conversion devices. The results include formation of waveguides and QPM structures in new crystals MgO:c-LiTaO3 with high optical damage resistance and LaBGeO5 with wide ultraviolet transparency range.
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Free Research Field |
集積光電子デバイス
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