Amplify photo-avalanche nonlinearity beyond 500Light Sci Appl. 2025 Aug 19;14 (1):281. doi: 10.1038/s41377-025-01950-7.. Holmium-doped nanoparticles exhibit a novel parallel photon avalanching mechanism, offering controlled chromaticity and enabling sub-diffraction, multicolour bio-imaging upon excitation with a.
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Avalanche phenomena use steeply nonlinear dynamics to generate disproportionately large responses from small perturbations, and are found in a multitude of events and materials 1. Photon.. A general mechanism, migrating photon avalanche, can generate large optical nonlinearity from various lanthanides emitters at the nanoscale.
