E. Messina, M. G. Donato, M. Zimbone, R. Saija, M. A. Iatì, L. Calcagno, M. E. Fragalà, G. Compagnini, C. D’Andrea, A. Foti, P. G. Gucciardi, and O. M. Maragò
Optical trapping of silver nanoplatelets obtained with a simple room temperature chemical synthesis technique is reported. Trap spring constants are measured for platelets with different diameters to investigate the size-scaling behaviour. Experimental data are compared with models of optical forces based on the dipole approximation and on electromagnetic scattering within a T-matrix framework. Finally, we discuss applications of these nanoplatelets for surface-enhanced Raman spectroscopy.
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