Albaladejo, Silvia Marqués, Manuel I. Scheffold, Frank Sáenz, Juan Jose 2009-08-12 We study the diffusion of a metal nanoparticle in the nonconservative force field of an optical vortex lattice. Radiation pressure in the vortex array is shown to induce a giant enhancement over the free thermal diffusion. Langevin dynamics simulations show that the diffusion coefficient of (50 nm radius) gold particles at room temperature is enhanced by 2 orders of magnitude at power densities of the order or smaller than those used to trap nanoparticles with optical tweezers. application/pdf https://folia.unifr.ch/global/documents/301498 https://folia.unifr.ch/documents/301498/files/scheffold_ged.pdf eng info:eu-repo/semantics/altIdentifier/doi/10.1021/nl901745a info:eu-repo/semantics/openAccess License undefined Nano Letters. - 2009, vol. 9, no. 10, p. 3527–3531 info:eu-repo/classification/udc/53 Giant enhanced diffusion of gold nanoparticles in optical vortex fields http://purl.org/coar/resource_type/c_6501