CUED Publications database

Optical trapping of carbon nanotubes and graphene

Vasi, S and Monaca, MA and Donato, MG and Bonaccorso, F and Privitera, G and Trushkevych, O and Calogero, G and Fazio, B and Irrera, A and Iatí, MA and Saija, R and Denti, P and Borghese, F and Jones, PH and Ferrari, AC and Gucciardi, PG and Maragó, OM (2011) Optical trapping of carbon nanotubes and graphene. AAPP Atti della Accademia Peloritana dei Pericolanti, Classe di Scienze Fisiche, Matematiche e Naturali, 89. ISSN 0365-0359

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We study optical trapping of nanotubes and graphene. We extract the distribution of both centre-of-mass and angular fuctuations from three-dimensional tracking of these optically trapped carbon nanostructures. The optical force and torque constants are measured from auto and cross-correlation of the tracking signals. We demonstrate that nanotubes enable nanometer spatial, and femto-Newton force resolution in photonic force microscopy by accurately measuring the radiation pressure in a double frequency optical tweezers. Finally, we integrate optical trapping with Raman and photoluminescence spectroscopy demonstrating the use of a Raman and photoluminescence tweezers by investigating the spectroscopy of nanotubes and graphene fakes in solution. Experimental results are compared with calculations based on electromagnetic scattering theory. © 2011 by the Author(s); licensee Accademia Peloritana dei Pericolanti, Messina, Italy.

Item Type: Article
Depositing User: Cron job
Date Deposited: 16 Jul 2015 13:11
Last Modified: 10 Oct 2015 02:09
DOI: 10.1478/C1V89S1P090