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13 March 2024 Room temperature single nanocrystal anti-Stokes shifted superfluorescence for bioimaging
Shuang Fang Lim, Kory K. Green, Hans D. Hallen, Kai Huang, Gang Han
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Proceedings Volume PC12862, Reporters, Markers, Dyes, Nanoparticles, and Molecular Probes for Biomedical Applications XV; PC128620B (2024) https://doi.org/10.1117/12.3006276
Event: SPIE BiOS, 2024, San Francisco, California, United States
Abstract
Superfluorescence (SF) is a unique quantum mechanical behavior arising from the self-organization between emitters, thus forming a cooperatively coupled assembly. In contrast to isotropic spontaneous emission or normal fluorescence, SF produces a short but intense burst of light, which makes it ideal for a wide variety of applications in biophotonics, electronics, and optical computing. Due to the prerequisite of cooperative emitter coupling, SF has been conventionally observed under cryogenic conditions in limited systems, such as atomic gases, and a few bulk material systems. Here we show lanthanide-doped upconversion nanoparticles (UCNPs) as a medium to achieve anti-Stokes shift SF at room temperature.
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Shuang Fang Lim, Kory K. Green, Hans D. Hallen, Kai Huang, and Gang Han "Room temperature single nanocrystal anti-Stokes shifted superfluorescence for bioimaging", Proc. SPIE PC12862, Reporters, Markers, Dyes, Nanoparticles, and Molecular Probes for Biomedical Applications XV, PC128620B (13 March 2024); https://doi.org/10.1117/12.3006276
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KEYWORDS
Nanocrystals
Nanoparticles
Quantum emitters
Upconversion
Biomedical optics
Luminescence
Quantum sensing
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