2022 Fiscal Year Annual Research Report
A novel design of integrated optical circuits and nanolaser devices using 2D and quantum dot perovskites
| Project/Area Number |
20H02197
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| Research Institution | The University of Tokyo |
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Principal Investigator |
何 亜倫 東京大学, 大学院理学系研究科(理学部), 特任助教 (20815386)
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| Co-Investigator(Kenkyū-buntansha) |
八井 崇 豊橋技術科学大学, 工学(系)研究科(研究院), 教授 (80505248)
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | ナノレーザー / ペロブスカイトナノ結晶 / プラズモニクス / コロイド量子ドット |
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| Outline of Annual Research Achievements |
This year we present an original approach to integrating on-chip perovskite nanocrystal lasers with long-range surface plasmon polariton (LRSPP) waveguides, using an etching-free lithographic patterning technique. This technique enables the fabrication of high-quality and size-controlled optical cavities based on CsPbBr3 nanocrystals, which can be precisely positioned relative to the LRSPP waveguide without the need for etching processes. The integration of the perovskite laser and LRSPP waveguide can be configured on a chip, allowing for direct coupling of stimulated emission from the on-chip perovskite nanocrystal laser to the LRSPP waveguide.
This perovskite photonic-plasmonic waveguide platform holds great promise for a variety of applications in optical communications and sensor-related devices. By eliminating the need for etching processes, it provides a simpler and more efficient way of integrating on-chip perovskite nanocrystal lasers with LRSPP waveguides.
Also, we demonstrate perovskite-nanocrystal plasmonic lasers that were fabricated by using the lithographic in-mold patterning method that relies on the electron beam lithography process, as well as high-quality and well-thickness-controlled CsPbBr3 nanocrystal film-based low-threshold and single-mode plasmonic lattice laser for surface emitting lasing.
These studies are significant not only for the nanolaser research community but also for its potential to offer a versatile nanofabrication technique for solution-processed quantum dots in a range of photonic and plasmonic devices.
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| Research Progress Status |
令和4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4年度が最終年度であるため、記入しない。
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