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Updated: Jan 25, 2026

Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications
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Multi-functional double rare-earth-doped ball sensor based on a hollow-core microstructure fiber

Boyao Li, Meng Wu, Yaoyao Liang

    Optics Letters
    |May 2, 2019
    PubMed
    Summary

    This study presents a novel multi-functional sensor using rare-earth-doped balls spliced with hollow-core fiber. The sensor accurately detects temperature, illumination, and liquid concentration, showing promise for environmental monitoring.

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