17 September 2014 Micro- and nano-particle trapping using fibered optical nano-tweezers
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Abstract
We present the stable trapping of luminescent 300-nm cerium-doped YAG particles in aqueous suspension using a dual fiber tip optical tweezers. The particles were elaborated using a specific glycothermal synthesis route together with an original protected annealing step. We obtained harmonic trap potentials in the direction transverse to the optical fiber axes. In the longitudinal direction, the potential shows some sub-structure revealed by two peaks in the distribution statistics with a distance of about half the wavelength of the trapping laser. We calculated intensity normalized trapping stiffness of 36 pN•μm-1W-1. These results are compared to previous work of microparticle trapping and discussed thanks to numerical simulations based on finite element method.
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Jean-Baptiste Decombe, Géraldine Dantelle, Thierry Gacoin, Francisco J. Valdivia-Valero, Gérard Colas des Francs, Serge Huant, Jochen Fick, "Micro- and nano-particle trapping using fibered optical nano-tweezers", Proc. SPIE 9164, Optical Trapping and Optical Micromanipulation XI, 916430 (17 September 2014); doi: 10.1117/12.2061623; https://doi.org/10.1117/12.2061623
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