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Up-conversion nanoparticles are highly attractive for application cases in bio sensing and imaging without autofluorescence. Characterizing the photophyiscial properties of such nanoparticles is essential to enhance the efficiency of preparation methods as well as their electronic and optical properties. We will demonstrate the performance of a spectrometer-microscope assembly for characterization and analysis of up-conversion nanoparticles in terms of lifetime, spectral, and spatial resolution, which provides more information than when using only lifetime or steady-state experiments.
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Christian Oelsner, Linnea Olofsson, Uwe Ortmann, Eugeny Ermilov, Volker Buschmann, Matthias Patting, Rainer Erdmann, "Measuring steady-state and time-resolved photoluminescence of up-conversion nanoparticles with high spatial resolution," Proc. SPIE PC11976, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIX, PC1197601 (3 March 2022); https://doi.org/10.1117/12.2605888