| Project/Area Number |
20F40045
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Single-year Grants |
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| Section | 外国 |
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| Review Section |
Basic Section 21030:Measurement engineering-related
|
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| Research Institution | The University of Tokyo |
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Principal Investigator |
J・J Delaunay 東京大学, 大学院工学系研究科(工学部), 准教授 (80376516)
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| Co-Investigator(Kenkyū-buntansha) |
LEE YANG-CHUN 東京大学, 工学(系)研究科(研究院), 外国人特別研究員
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| Project Period (FY) |
2020-11-13 – 2022-03-31
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| Project Status |
Completed (Fiscal Year 2021)
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| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2021: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2020: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | surface wave / sensing / Bloch surface wave / on-chip integration |
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| Outline of Research at the Start |
Sensing with high sensitivity is realized on a chip by developing a guided surface wave platform with integrated coherent light sources. The proposed detection scheme relies on a guided Bloch surface wave with low propagation losses so that complex optical circuits can be realized.
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| Outline of Annual Research Achievements |
A Bloch surface wave (BSW)-based coherent light source and associated waveguide are proposed as an on-chip sensing scheme making use of BSW high confinement near the structure/air interface as well as BSW small propagation losses. We have designed and fabricated the on-chip optical sensor comprising integrated coherent light sources and bus waveguides on a dielectric multilayer and obtained guided BSW modes. So far, lasing has been achieved with a 0.2 nm bandwidth, and the propagation length of the guiding mode was 80 microns. The sensing ability of the device based on the change in the effective index of the lasing mode in the presence of analytes produces a wavelength shift of 0.17 nm. The scheme requires further optimization to realize on-chip high-throughput optical sensors.
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| Research Progress Status |
令和3年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
令和3年度が最終年度であるため、記入しない。
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