| 研究実績の概要 |
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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