Abstract

The special features of noble metals make them versatile and able to be used as handles in optical trapping. The trapping of various metal nanostructures has been investigated in the literature. In this paper, the optical trapping of hollow gold and silver nanoparticles is studied as a function of the trapping depth. It is shown that the trapping of hollow nanoparticles stiffens with the cavity size. It is shown that the trapping strength and the trapping efficiency enhance five-fold and two-fold, respectively.

© 2016 Optical Society of America

Optical trapping calculations for metal nanoparticles. Comparison with experimental data for Au and Ag spheres.

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