Open AccessOptical trapping of silver nanoplatelets
Author(s) -
Elena Messina,
M. G. Donato,
Massimo Zimbone,
Rosalba Saija,
Maria Antonia Iatı̀,
L. Calcagno,
Maria Elena Fragalà,
Giuseppe Compagnini,
Cristiano D’Andrea,
Antonino Foti,
P. G. Gucciardi,
Onofrio M. Maragò
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.008720
Subject(s) - materials science , raman scattering , trapping , optics , scattering , scaling , discrete dipole approximation , light scattering , optical tweezers , optical force , raman spectroscopy , spectroscopy , physics , ecology , geometry , mathematics , quantum mechanics , biology
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.