DOI: 10.1039/d6nr02493a ISSN: 2040-3364

On the resonance-enhanced optical trapping of upconversion nanoparticles

Aleksandr Kostarev, Robert Thalwitzer, Viktor Schiff, Sandra Richter, Anita Jannasch, Marcus Scheele, Erik Schäffer

Near-resonance optical trapping of upconversion nanoparticles can double the trap stiffness demonstrated by using dual-wavelength optical tweezers. Yet, nanoparticle clustering can lead to an overestimation of trapping efficiency.

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